JPS5590214A - Drill - Google Patents
DrillInfo
- Publication number
- JPS5590214A JPS5590214A JP16195578A JP16195578A JPS5590214A JP S5590214 A JPS5590214 A JP S5590214A JP 16195578 A JP16195578 A JP 16195578A JP 16195578 A JP16195578 A JP 16195578A JP S5590214 A JPS5590214 A JP S5590214A
- Authority
- JP
- Japan
- Prior art keywords
- shank
- wall
- work hole
- cutting edge
- choke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Drilling Tools (AREA)
Abstract
PURPOSE: To keep peripheral surfaces of the shank not contacted to an inner wall of the work hole while preventing a choke of cutting chips, and reduce a rotational resistance, further enhance finish precision of the work hole, by making outside diameter of the shank a certain range smaller than that of the point end cutting edge.
CONSTITUTION: In a shank 1 of the drill, are constructed a pair of tips 2, having a cutting edge 6, and a helical groove 3. Outside diameter of the cutting edge 6 is constructed bigger than that of the shank 1, and between an inner wall 5 of the work hole and a peripheral surface 4 of the shank, is made a clearance t. This clearance t, being made to a range of 0.02W0.15mm, can eliminate contact of the peripheral surface 4 to the inner wall 5, and cause no choke of cutting chips, thus can be obtained an inner wall of the work hole with a good finish.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16195578A JPS5590214A (en) | 1978-12-27 | 1978-12-27 | Drill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16195578A JPS5590214A (en) | 1978-12-27 | 1978-12-27 | Drill |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5590214A true JPS5590214A (en) | 1980-07-08 |
JPS6341694B2 JPS6341694B2 (en) | 1988-08-18 |
Family
ID=15745226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16195578A Granted JPS5590214A (en) | 1978-12-27 | 1978-12-27 | Drill |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5590214A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS597509A (en) * | 1982-07-02 | 1984-01-14 | Toshiaki Hosoi | Drill |
US5387059A (en) * | 1993-08-24 | 1995-02-07 | Borzemsky; George E. | Drill bit with improved stability |
US5967712A (en) * | 1998-11-03 | 1999-10-19 | Kennametal Inc. | Cutting tool for machining bores in materials having spring-back |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0211990A (en) * | 1988-06-29 | 1990-01-17 | Nitta Mua Co:Kk | Plastic tube fitting and manufacture thereof |
JPH0454389U (en) * | 1990-09-17 | 1992-05-11 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5311389A (en) * | 1976-07-19 | 1978-02-01 | Fuji Seiki Machine Works | Tools for cutting hard cutting materials |
-
1978
- 1978-12-27 JP JP16195578A patent/JPS5590214A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5311389A (en) * | 1976-07-19 | 1978-02-01 | Fuji Seiki Machine Works | Tools for cutting hard cutting materials |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS597509A (en) * | 1982-07-02 | 1984-01-14 | Toshiaki Hosoi | Drill |
JPS6216765B2 (en) * | 1982-07-02 | 1987-04-14 | Toshiaki Hosoi | |
US5387059A (en) * | 1993-08-24 | 1995-02-07 | Borzemsky; George E. | Drill bit with improved stability |
US5967712A (en) * | 1998-11-03 | 1999-10-19 | Kennametal Inc. | Cutting tool for machining bores in materials having spring-back |
Also Published As
Publication number | Publication date |
---|---|
JPS6341694B2 (en) | 1988-08-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19870526 |