CN204486875U - Four-in-one screw hole countersunk knife - Google Patents
Four-in-one screw hole countersunk knife Download PDFInfo
- Publication number
- CN204486875U CN204486875U CN201520124712.4U CN201520124712U CN204486875U CN 204486875 U CN204486875 U CN 204486875U CN 201520124712 U CN201520124712 U CN 201520124712U CN 204486875 U CN204486875 U CN 204486875U
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- Prior art keywords
- blade
- knife
- sides
- sword face
- relative
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/08—Drills combined with tool parts or tools for performing additional working
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/10—Bits for countersinking
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The utility model is about a kind of four-in-one screw hole countersunk knife, it has a blade, this blade is installed in a handle of a knife, the cutting end of this blade has a brill hole portion, the both sides in this brill hole portion connect the one end in a grooving portion respectively, the relative both side edges of this blade is formed with a blade part and a chamfered section respectively, and this blade part connects the other end in this grooving portion, and the relative two sides of this blade form a chip area respectively; Cone hole is formed in workpiece by the brill hole portion of this blade, this grooving portion and this blade part cut and form groove, and, this chamfered section processes the first chamfering of this groove, then forms hole by drill bit in the centre drilling of this cone hole, can form counter sink and the second chamfering, the operation of counter sink and chamfer machining is reduced, cutting tool quantity needed for reduction, to shorten process time, and improves processing and manufacturing efficiency.
Description
Technical field
The utility model relates to a kind of process tool, particularly relate to a kind of on workpiece machine-shaping be the cutter in hole.
Background technology
Boring is processing procedure common in machining, it runs through the assembling demand of connection depending on workpiece and cooperation for screw usually, and on workpiece, implement counter sink processing, the head of screw can be provided to be imbedded in counter sink, and do not protrude out surface of the work, in addition in order to remove the burr that machining produces, and for the ease of Assembly of the parts, after hole machined, staff the edge further in hole can carry out chamfering.
The counter sink work flow of prior art, please refer to shown in Figure 11 to Figure 15, when staff adds man-hour for carrying out counter sink on a workpiece 50, first, as shown in figure 11, by a center bit 60 in this workpiece 50 place, process a cone hole 51, so that the location of Drilling operation and guiding, then 51 centre are cheated with a drill bit 70 in this cone, as shown in figure 12, drilling forms a hole 52, staff cheats 51 places with a countersunk head milling cutter 80 in this cone again, as shown in figure 13, further cutting formation one counter sink 53, this counter sink 53 is connected to this hole 52 and is formed stepped, the edge using one first rose reamer 91 to connect this hole 52 in this counter sink 53 carries out chamfering, as shown in figure 14, to form one first chamfering 531, finally, with the verge of opening place chamfering of one second rose reamer 92 in this counter sink 53, as shown in figure 15, to form one second chamfering 532.
But the counter sink processing of prior art, through multiple working procedure, with various dissimilar Tool in Cutting, just need can complete the processing of counter sink and chamfering, make whole work flow expend time in, thus reduce the efficiency of processing and manufacturing.
Utility model content
The purpose of this utility model is to improve in prior art, counter sink and chamfer machining need be formed with multiple working procedure, formation expends time in the inefficient disappearance with processing and manufacturing, by the enforcement of the utility model technological means, the operation of processing is reduced, cutting tool quantity needed for reduction, thus shorten process time, to improve processing and manufacturing efficiency.
For reaching above-mentioned creation object, the technological means that the utility model adopts is a kind of four-in-one screw hole countersunk knife of design, and wherein, this four-in-one screw hole countersunk knife has a blade and a handle of a knife, and this blade is connected to this handle of a knife;
This blade is a lamellar body, and this blade has a brill hole portion, two grooving portions, two blade parts, two chamfered section and at least one chip area, the relative both sides place of described blade is lateral margin, and the two relative surfaces of described blade are sides, and described lateral margin is connected to described side;
The centre convexedly stretching in this blade one end face of this brill hole portion shape in obtuse angle, this two groovings portion is formed at the end face of this blade and two slot portion are not positioned at the both sides in this brill hole portion;
This two blade part is formed at the relative both side edges of this blade respectively, and this blade part one end is connected to an end in this grooving portion;
This two chamfered section is formed at the relative both side edges of this blade respectively, and this chamfered section one end is connected to the other end of this blade part, and this chamfered section and this blade part form an obtuse angle;
This chip area is recessed to form the side in this blade, and this chip area is connected to this brill hole portion, grooving portion and this blade part.
Described four-in-one screw hole countersunk knife, wherein, this blade has two chip areas, and wherein a chip area is formed at the connection one lateral margin place of a side of this blade, and another chip area is formed at another lateral margin place of connection of the another side of this blade;
This brill hole portion has two first sword faces, and this two first sword faces symmetry is formed at the both sides place of the end face central authorities of this blade, and wherein one first sword face is laterally inclined relative to of this blade, and another the first sword face tilts relative to the another side of this blade;
This two groovings portion respectively has one second sword face, and wherein one second sword face is laterally inclined relative to of this blade, and another the second sword face tilts relative to the another side of this blade, and this two second sword face connects this contiguous the first sword face respectively;
This two blade part respectively has one the 3rd sword face, and wherein one the 3rd sword face is laterally inclined relative to of this blade, and another the 3rd sword face tilts relative to the another side of this blade, and this two the 3rd sword face connects this contiguous the second sword face respectively;
This two chamfered section respectively has one the 4th sword face, and wherein one the 4th sword face is laterally inclined relative to of this blade, and another the 4th sword face tilts relative to the another side of this blade, and this two the 4th sword face connects the 3rd contiguous sword face respectively.
Described four-in-one screw hole countersunk knife, wherein, this handle of a knife is a body of rod, and one end of this handle of a knife forms an installing department;
This blade has an installation end, and this installation end is connected and fixed on the installing department of this handle of a knife.
Described four-in-one screw hole countersunk knife, wherein, this handle of a knife has a connection piece further, and this installing department protrudes out the one end being formed at this handle of a knife;
This installing department two spacedly seizes sheet on both sides by the arms, and these two central authorities of seizing sheet on both sides by the arms form a tank, and this two is seized sheet on both sides by the arms and wear formation one connecting hole respectively, and this two connecting hole of seizing on both sides by the arms on sheet is mutually corresponding, and wherein an inner edge of seizing the connecting hole of sheet on both sides by the arms forms internal thread;
This blade has a fixing hole, this blade be located in this two seize on both sides by the arms sheet formed tank, this fixing hole is to the connecting hole should seizing sheet on both sides by the arms; This connector wears this and seizes sheet and this fixing hole on both sides by the arms, and this connector is threadedly connected to the female connecting hole of tool.
Described four-in-one screw hole countersunk knife, wherein, this handle of a knife has a butting section further, this butting section be wedge shape be recessed to form in this two seize on both sides by the arms sheet form tank;
This installation end be in a wedge shape protrude out the end being formed at this blade, this installation end respective top is butted on the butting section of this handle of a knife.
Described four-in-one screw hole countersunk knife, wherein, this handle of a knife has a butting section further, this butting section be wedge shape protrude out be formed at this two seize on both sides by the arms sheet form tank;
This installation end is the end be recessed to form in this blade in a wedge shape, and this installation end is by the butting section contact of this handle of a knife.
The utility model has the advantage of, a cone hole is formed in a workpiece by the brill hole portion of this blade, the grooving portion of this blade and blade part cut formation one groove in this workpiece, and, this chamfered section processes the first chamfering of this groove, cheat centre drilling by a drill bit in this cone again and go out a hole, a counter sink and one second chamfering can be formed, the counter sink of workpiece and the operation of chamfer machining are reduced, cutting tool quantity needed for reduction, to shorten process time, and improve processing and manufacturing efficiency.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is stereogram of the present utility model.
Fig. 2 is separation graph of the present utility model.
Fig. 3 is the front view of the utility model blade.
Fig. 4 is the upward view of the utility model Fig. 3.
Fig. 5 is the side view of the utility model Fig. 3.
Fig. 6 is the front view of the utility model handle of a knife.
Fig. 7 is partial sectional view of the present utility model.
Fig. 8 is another enforcement illustration that the utility model is installed.
Fig. 9 is machined grooves schematic diagram of the present utility model.
Figure 10 is boring schematic diagram of the present utility model.
Figure 11 is the drill centers schematic diagram of prior art.
Figure 12 is the boring schematic diagram of prior art.
Figure 13 is the processing counter sink schematic diagram of prior art.
Figure 14 is the processing first chamfering schematic diagram of prior art.
Figure 15 is the processing second chamfering schematic diagram of prior art.
Drawing reference numeral illustrates:
10,10A blade 11 bores hole portion
111 first grooving portion, sword faces 12
121 second sword face 13 blade parts
131 the 3rd sword face 14 chamfered section
141 the 4th sword face 15 chip areas
16 fixing holes 17,17A installation end
101 lateral margin 102 sides
20,20A handle of a knife 21 installing department
200,200A butting section 211 seizes sheet on both sides by the arms
212 connecting hole 22 connectors
30 workpiece 31 grooves
311 cone hole 3,111 second chamferings
312 end face 313 sidewalls
314 first chamfering 32 holes
40 drill bit 50 workpieces
51 cone holes, hole 52
53 counter sink 531 first chamferings
532 second chamfering 60 center bits
70 drill bit 80 countersunk head milling cutters
91 first rose reamer 92 second rose reamers
Detailed description of the invention
Below coordinating preferred embodiment graphic and of the present utility model, setting forth the technological means that the utility model is taked for reaching predetermined utility model object further.
Please refer to shown in Fig. 1 and Fig. 2, four-in-one screw hole countersunk knife of the present utility model, have blade 10 and a handle of a knife 20, the installing of this blade 10 is incorporated into one end of this handle of a knife 20.
Please refer to shown in Fig. 3 and Fig. 4, this blade 10 is lamellar bodies, and it has a cutting end and an installation end 17, and this cutting end and this installation end 17 are formed at the relative both ends of this blade 10 respectively; The relative both sides place of this blade 10 is lateral margins 101, and the two relative surfaces of this blade 10 are sides 102, and this lateral margin 101 is connected to this side 102.
This cutting end has grooving portion of brill hole portion 11, two 12, two blade part 13, two chamfered section 14, two chip area 15 and a fixing hole 16.
The centre convexedly stretching in this blade 10 1 end face of this brill hole portion 11 shape in obtuse angle, this two groovings portion 12 is formed at the end face of this blade 10 and lays respectively at the both sides in this brill hole portion 11, this brill hole portion 11 has two first sword faces 111, this two first sword face 111 is in the formation of the end surface symmetric complementation of this blade 10, this the first sword face 111 tilts relative to this side 102, specifically, this two first sword face 111 is symmetrically formed the both sides place in this blade 10 end face central authorities, and, wherein one first sword face 111 tilts relative to a side 102 of this blade 10, another the first sword face 111 tilts relative to the another side 102 of this blade 10, this grooving portion 12 has one second sword face 121, the second sword face 121 in this two groovings portion 12 is in the formation of the end face complementation of this blade 10, this the second sword face 121 tilts relative to this side 102, and this second sword face 121 connects this first sword face 111, specifically, wherein one second sword face 121 tilts relative to a wherein side 102, and another the second sword face 121 tilts relative to another side 102.
Shown in Fig. 5, this two blade part 13 is formed at the relative both side edges 101 of this blade 10 respectively, one end of this blade part 13 is connected to an end in this grooving portion 12, this blade part 13 has one the 3rd sword face 131, the both side edges 101 being formed at this blade 10 of the 3rd sword face 131 complementation of this two blade part 13, 3rd sword face 131 tilts relative to this side 102, and the 3rd sword face 131 connects this second sword face 121, specifically, wherein one the 3rd sword face 131 wherein tilts a side 102 relative to this blade 10, another the 3rd sword face 131 tilts relative to this blade 10 another side 102.
This two chamfered section 14 is formed at the relative both side edges 101 of this blade 10 respectively, one end of this chamfered section 14 is connected to the other end of this blade part 13, and this chamfered section 14 forms an obtuse angle with this blade part 13, this chamfered section 14 has one the 4th sword face 141, the both side edges 101 being formed at this blade 10 of the 4th sword face 141 complementation of this two chamfered section 14, 4th sword face 141 tilts relative to this side 102, and the 4th sword face 141 connects the 3rd sword face 131, specifically, wherein one the 4th sword face 141 wherein tilts a side 102 relative to this blade 10, another the 4th sword face 141 tilts relative to this blade 10 another side 102.
This two chip area 15 is in the complementary relative two sides 102 be recessed to form in this blade 10, and chip area 15 is connected to this brill hole portion 11, grooving portion 12 and this blade part 13, specifically, wherein a chip area 15 is formed at connection wherein lateral margin 101 place of this blade 10 wherein side 102, and another chip area 15 is formed at another lateral margin 101 place of connection of this blade 10 another side 102.
This fixing hole 16 runs through and is formed at this blade 10.
In the specific embodiment of Fig. 3, this installation end 17 protrudes out in a wedge shape end being formed at this blade 10, but the profile of this installation end 17 is not as limit.
Please refer to shown in Fig. 6 and Fig. 7, this handle of a knife 20 is bodies of rod, and its one end forms installing department 21 and a butting section 200, and has a connection piece 22, and specifically, this connector 22 is screws; The installation end 17 of this blade 10 is connected and fixed on the installing department 21 of this handle of a knife 20.
This installing department 21 protrudes out the one end being formed at this handle of a knife 20, specifically, this installing department 21 two spacedly seizes sheet 211 on both sides by the arms, this two seize on both sides by the arms sheet 211 central authorities formed a tank, further, this is seized sheet 211 on both sides by the arms and wears formation one connecting hole 212 respectively, and this two connecting hole 212 of seizing on both sides by the arms on sheet 211 is mutually corresponding, wherein connecting hole 212 inner edge of seizing sheet 211 on both sides by the arms forms internal thread, and this butting section 200 being recessed to form in wedge shape two seizes the tank that sheet 211 forms on both sides by the arms in this; This blade 10 be located in this two seize on both sides by the arms sheet 211 formed tank, installation end 17 respective top of this blade 10 is butted on this butting section 200, this fixing hole 16 is to the connecting hole 212 should seizing sheet 211 on both sides by the arms, this connector 22 wears this and seizes sheet 211 and this fixing hole 16 on both sides by the arms, and is threadedly connected to the female connecting hole 212 of tool.
This blade 10 is fixed on another embodiment of this handle of a knife 20, please refer to shown in Fig. 8, the butting section 200A of this handle of a knife 20A be wedge shape protrude out formation, the installation end 17A then corresponding depression in wedge shape of this blade 10A, in time installing, the installation end 17A of this blade 10A is subject to the butting section 200A contact of this handle of a knife 20A.
The wedge shape abutting relation coordinated between the installation end 17 of this blade 10 with the butting section 200 of this handle of a knife 20, contributes to the utility model in process, and keep this blade 10 relative to the steadiness of this handle of a knife 20, situation is rocked in unlikely generation.
The utility model is used to carry out the step of counter sink processing, please refer to shown in Fig. 9, blade 10 installing of the present utility model is incorporated into this handle of a knife 20, to carry out machining to a workpiece 30, this blade 10 cuts formation one groove 31 in this workpiece 30, the brill hole portion 11 of this blade 10 processes this groove 31, to form a cone hole 311, this grooving portion 12 and this blade part 13 are processed to form end face 312 and the sidewall 313 of this groove 31 respectively, this chamfered section 14 forms the first chamfering 314 of this groove 31, then, with reference to shown in Figure 10, cheat 311 centre by a drill bit 40 in this cone again to cut, to form a hole 32, this cone hole 311 can for the location of this drill bit 40 Drilling operation and guiding, this groove 31 connects this hole 32 and forms a step structure, now, namely this groove 31 and this hole 32 form the structure of a counter sink, and, aperture due to this hole 32 is slightly less than the maximum diameter of hole in this cone hole 311, therefore in the junction in this groove 31 and this hole 32, i.e. self-assembling formation one second chamfering 3111.
Because blade 10 of the present utility model is with cutting at one time, the machining feature such as cone hole 311, end face 312, sidewall 313 and the first chamfering 314 can be formed in this workpiece 30, afterwards, only need to form this hole 32 with this drill bit 40 drilling again, the processing of counter sink and chamfering can be completed, therefore, significantly can reduce cutting process and required cutter, thus shorten process time, to promote processing and manufacturing efficiency.
The foregoing is only the schematic detailed description of the invention of the utility model, and be not used to limit scope of the present utility model.Any those of ordinary skill in the art, equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.
Claims (6)
1. a four-in-one screw hole countersunk knife, is characterized in that: described four-in-one screw hole countersunk knife has a blade and a handle of a knife, and described blade is connected to described handle of a knife;
Described blade is a lamellar body, and described blade has a brill hole portion, two grooving portions, two blade parts, two chamfered section and at least one chip area, the relative both sides place of described blade is lateral margin, and the two relative surfaces of described blade are sides, and described lateral margin is connected to described side;
The centre convexedly stretching in an end face of described blade of described brill hole portion shape in obtuse angle, grooving portion described in two be formed at described blade described end face and two described in slot portion be not positioned at the both sides in described brill hole portion;
Blade part described in two is formed at the relative both side edges of described blade respectively, and an end of described blade part is connected to an end in described grooving portion;
Chamfered section described in two is formed at the relative both side edges of described blade respectively, and an end of described chamfered section is connected to the other end of described blade part, and described chamfered section and described blade part form an obtuse angle;
Described chip area is recessed to form the side in described blade, and described chip area is connected to described brill hole portion, described grooving portion and described blade part.
2. four-in-one screw hole countersunk knife according to claim 1, it is characterized in that: described blade has chip area described in two, wherein chip area described in be formed at described blade one described in side connection one described in lateral margin place, chip area described in another be formed at described blade another described in connection lateral margin place described in another of side;
Described brill hole portion has two first sword faces, described in two, the first sword face symmetry is formed at the both sides place of the end face central authorities of described blade, and, wherein the first sword face described in relative to described blade one described in laterally inclined, the first sword face described in another relative to described blade another described in laterally inclined;
Grooving portion described in two respectively has one second sword face, wherein the second sword face described in relative to described blade one described in laterally inclined, second sword face described in another relative to described blade another described in laterally inclined, and the second sword face described in two connects contiguous described first sword face respectively;
Blade part described in two respectively has one the 3rd sword face, wherein the 3rd sword face described in relative to described blade one described in laterally inclined, 3rd sword face described in another is laterally inclined described in another relative to described blade, and the 3rd sword face described in two connects contiguous described second sword face respectively;
Chamfered section described in two respectively has one the 4th sword face, wherein the 4th sword face described in relative to described blade one described in laterally inclined, 4th sword face described in another is laterally inclined described in another relative to described blade, and the 4th sword face described in two connects contiguous described 3rd sword face respectively.
3. four-in-one screw hole countersunk knife according to claim 1 and 2, it is characterized in that: described handle of a knife is a body of rod, one end of described handle of a knife forms an installing department;
Described blade has an installation end, and described installation end is connected and fixed on the described installing department of described handle of a knife.
4. four-in-one screw hole countersunk knife according to claim 3, it is characterized in that: described handle of a knife has a connection piece further, described installing department protrudes out the one end being formed at described handle of a knife;
Described installing department two spacedly seizes sheet on both sides by the arms, the central authorities of seizing sheet described in two on both sides by the arms form a tank, and, seize sheet described in two on both sides by the arms and wear formation one connecting hole respectively, the described connecting hole of seizing on both sides by the arms described in two on sheet is mutually corresponding, and the inner edge of wherein seizing the described connecting hole of sheet described on both sides by the arms forms internal thread;
Described blade has a fixing hole, and described blade is located in the described tank of seizing sheet formation described in two on both sides by the arms, seizes the connecting hole of sheet described in described fixing hole correspondence on both sides by the arms;
Seize sheet and described fixing hole described in described connector wears on both sides by the arms, and described connector is threadedly connected to the female described connecting hole of tool.
5. four-in-one screw hole countersunk knife according to claim 4, is characterized in that: described handle of a knife has a butting section further, and described butting section is the described tank be recessed to form in seizing sheet formation described in two on both sides by the arms of wedge shape;
Described installation end be in a wedge shape protrude out the end being formed at described blade, described installation end respective top is butted on the described butting section of described handle of a knife.
6. four-in-one screw hole countersunk knife according to claim 4, is characterized in that: described handle of a knife has a butting section further, described butting section be wedge shape protrude out the described tank being formed at and seizing sheet described in two on both sides by the arms and form;
Described installation end is the end be recessed to form in described blade in a wedge shape, and described installation end is by the described butting section contact of described handle of a knife.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520124712.4U CN204486875U (en) | 2015-03-04 | 2015-03-04 | Four-in-one screw hole countersunk knife |
| PCT/CN2016/073103 WO2016138810A1 (en) | 2015-03-04 | 2016-02-01 | Four-in-one screw hole countersunk head tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520124712.4U CN204486875U (en) | 2015-03-04 | 2015-03-04 | Four-in-one screw hole countersunk knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204486875U true CN204486875U (en) | 2015-07-22 |
Family
ID=53566170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520124712.4U Active CN204486875U (en) | 2015-03-04 | 2015-03-04 | Four-in-one screw hole countersunk knife |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204486875U (en) |
| WO (1) | WO2016138810A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016138810A1 (en) * | 2015-03-04 | 2016-09-09 | 良佑五金工具（深圳）有限公司 | Four-in-one screw hole countersunk head tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87211049U (en) * | 1987-07-28 | 1988-05-04 | 刘海峰 | Combined drill head capable of completing drilling by one operation |
| US5570978A (en) * | 1994-12-05 | 1996-11-05 | Rees; John X. | High performance cutting tools |
| US20070280792A1 (en) * | 2006-06-01 | 2007-12-06 | Onsrud Cutter Lp | Polycrystalline diamond tool for cutting |
| CN101823166B (en) * | 2009-03-07 | 2012-08-29 | 鸿富锦精密工业（深圳）有限公司 | Molding milling cutter and molding method |
| CN202239812U (en) * | 2011-09-14 | 2012-05-30 | 苏州航天紧固件有限公司 | Multi-section drill bit |
| CN202527765U (en) * | 2012-04-27 | 2012-11-14 | 益壮企业有限公司 | Milling cutter for chamfering |
| CN202752674U (en) * | 2012-07-19 | 2013-02-27 | 中国石油集团渤海石油装备制造有限公司 | Groove milling cutter for inclined hole drilling |
| CN203171046U (en) * | 2012-12-24 | 2013-09-04 | 亚狮精密刀具(苏州)有限公司 | Combined milling cutter |
| CN203316811U (en) * | 2013-06-21 | 2013-12-04 | 上海协昌霍宁实业发展有限公司 | Compound multi-step milling cutter |
| CN203330481U (en) * | 2013-06-21 | 2013-12-11 | 合肥力威汽车油泵有限公司 | Straight-handle milling cutter |
| CN203426508U (en) * | 2013-06-28 | 2014-02-12 | 温岭市联星机械有限公司 | Combined tool for machining holes in crank |
| CN203541645U (en) * | 2013-11-14 | 2014-04-16 | 武汉泰尔斯刀具有限公司 | Step drill bit for machining guiding hole |
| CN103586524A (en) * | 2013-11-14 | 2014-02-19 | 苏州万一刀具工业有限公司 | Tungsten steel formed milling cutter for aluminum manufacturing |
| TWM473881U (en) * | 2013-11-21 | 2014-03-11 | Yih Troun Entpr Co Ltd | Blade type milling cutter |
| CN103624300A (en) * | 2013-12-06 | 2014-03-12 | 新昌县永强空调配件有限公司 | Step drill |
| CN204486875U (en) * | 2015-03-04 | 2015-07-22 | 益壮企业有限公司 | Four-in-one screw hole countersunk knife |
-
2015
- 2015-03-04 CN CN201520124712.4U patent/CN204486875U/en active Active
-
2016
- 2016-02-01 WO PCT/CN2016/073103 patent/WO2016138810A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016138810A1 (en) * | 2015-03-04 | 2016-09-09 | 良佑五金工具（深圳）有限公司 | Four-in-one screw hole countersunk head tool |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016138810A1 (en) | 2016-09-09 |
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