US3751177A - Guide pad mounting on a drill bit - Google Patents

Guide pad mounting on a drill bit Download PDF

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Publication number
US3751177A
US3751177A US3751177DA US3751177A US 3751177 A US3751177 A US 3751177A US 3751177D A US3751177D A US 3751177DA US 3751177 A US3751177 A US 3751177A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
drill
pad
guide
surface
axis
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.)
Expired - Lifetime
Application number
Inventor
K Faber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Santrade Ltd
Original Assignee
Sandvik AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Grant date

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/04Drills for trepanning
    • B23B51/048Drills for trepanning with exchangeable cutting inserts, e.g. able to be clamped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00Reaming tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/02Connections between shanks and removable cutting heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/42Types of drill
    • B23B2251/422Deep hole drills, e.g. ejector drills
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/56Guiding pads
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S408/00Cutting by use of rotating axially moving tool
    • Y10S408/705Drilling deep holes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • Y10T408/892Tool or Tool with support with work-engaging structure detachable from cutting edge
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • Y10T408/905Having stepped cutting edges
    • Y10T408/906Axially spaced
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • Y10T408/907Tool or Tool with support including detailed shank

Abstract

A drill has a guide pad pivotally mounted on it, on that the guide pad may adapt itself to the surface of a hole wherein the drill is being operated.

Description

United States Patent 11 1 Faber 14 1 Aug. 7, 1973 1 1 GUIDE PAD MOUNTING ()N A 01111111 BIT 1,866,082 7/1932 011115011 175/202 9 {75] Inventor: Kurt Heinrich Albert Erich Faber, Sundvikcn, Sweden 2 47:726 1953 Assigncc: Sandvik k g Sandvikcn BlShOp X Swede" FOREIGN PATENTS OR APPLICATIONS [22] Filed: Nov. 20, 1970 313,802 6/1929 Great Britain 175/325 271,839 3/1928 Great Britain.... 175/325 [211 APPl- 91,296 1,221,024 5/1960 France 175 325 66,525 9/1914 Austria..... 175/325 Foreign Application Priority Data 321,935 6/1920 Germany 175/325 N .24,1969 S 'd 16082 69 m w Ln Primary Examiner-Marv1n A. Champlon 52 us. c1 408/200 175/325 175/408 Lewis Attorney-Pierce, Scheffler & Parker [51] Int. Cl B23b.5l/00 [58] Field of Search 175/320, 325, 344-347, [57] ABSTRACT A dr111 has a gu1de pad p1vota11y mounted on it, on that [56] References Cited the guide pad may adapt itself to the surface of a hole UNITED STATES PATENTS 'wherein the drill is being operated. 2,151.646 3/1939 Subkow ct a1. 175/325 7 Claims, 8 Drawing Figures PAIENIEmuc 1 ms sum 1 or 4 7 PAIENIED AUG 71973 SHEET 3 BF 4 l I I I.

GUIDE PAD MOUNTING ON A DRILL BIT between the outer surface of the pad and the wall of the hole. Now it has been observed that the shape of the drill may change, for instance by elastic deformation or by diameter wear, in such a way that there is established only a partial contact between the pads and the wall of the hole. This results in an increased specific surface pressure from the pads causing undue friction.

The invention provides an improvement in this regard by means of a guide pad which is mounted on a pivot, so that it can rock and adapt itself to the surface of the hole, thereby securing a full surface contact.

The invention is closer described in the following specification with appended drawings, showing:

FIG. 1, a side view of a drill according to the invention.

FIG. 2, an end view of the same drill.

FIG. 3, a guide pad on the same drill.

FIG. 4, a cross section on the line 4-4 in FIG. 3.

FIG. 5, a side view of another embodiment of the invention.

FIG. 6, an end view of the drill in FIG. 5.

FIG. 7, a side view of a third embodiment of the invention.

FIG. 8, an end view of the drill in FIG. 7.

The drill shown in FIGS. 1 and 2 is a metal drill having a number of cutting inserts 11 clamped in supports 13 by clamps 12 of which all except one have been omitted in FIG. 2. The supports 13 are attached to the drill in a suitable way, e.g., by screws or by brazmg.

For supporting and guiding the drill in the hole are provided two guide pads 20, suitably of sintered carbide. The pads are mounted on a pivot so that they can rock around both a longitudinal and a transverse axis. The pivoting around a longitudinal axisis obtained by means of a support 21 witha cylindrical sliding surface 22, which rests on a matching surface 23 in a depression in the drill. The periphery surface 25 of the support 21 is approximately flush with the periphery surface of the drill. The support is fastened with a screw 26 (FIG. 1) and a resilient washer 27 permitting rocking of the support.

The pivot axis 24 lies outside the pad in order that when the drill rotates the friction on the pad will urge the leading edge 28 of the pad away from the edge of the hole. This lessens the friction and facilitates the entering of the lubricant between the pad and the wall. By a suitable position of the centre 24 the surface pressure can be properly distributed with regard to the hydrodynamic effect of the lubricant.

The pivoting on a transverse axis is obtained by a support 30 having a cylindrical surface 31 sliding along a matching surface 32 in the support 21. The pad is held by a tubular pin 34 within a bore through both supports 21 and 30. As the axis of the pin lies outside the pivot centre 33, the rocking requires bending of the pin. This is made possible by an annular space 35 extending along a part of the pin 34.

The pivot mounting around two perpendicular axii provided by the above described two cylindrical sliding joints may be obtained by a single spherical joint.

FIGS. 5 and 6 show a modified embodiment of the invention in which the pad unit 40 is symmetrical. It carries two sintered carbide pads 41 on each side of a fastening screw 42, under the head of which there is a helical spring 43 permitting the rocking around a longitudinal axis. This embodiment comprises no rocking on a transverse axis. The advantage of the symmetrical pad is that the pad can be turned half a turn when it has been worn out on the side having the greatest pressure.

FIGS. 7 and 8 show another symmetrical pad unit 50 having four pad inserts 51 on a drill for counterboring (reaming), i.e. for enlarging the internal diameter of holes. The specific advantage is that the great area of the pads makes the'tool suitable for reaming the inner diameter of tubes with a thin wall that would be damaged by the pressure from smaller guide pads.

'I claim:

1. Drill for drilling in metal having a guide pad adapted to slide with frictional contact along the wall of the drill hole, in which the guide pad is pivotally rockable on at least one axis having the same general direction as the sliding surface of the guide pad and situated at a fixed distance from the drill axis.

2. Drill as defined in claim 1, in which the guide pad is mounted on a sliding bearing with a curved sliding bearing surface.

3. Drill as defined in claim I in which the pivot comprises a cylindrical sliding bearing with a longitudinal axis.

4. Drill as defined in claim 3, in which the pivot comprises a second cylindrical sliding bearing with a transverse axis.

5. Drill as defined in claim 1 in which the pivot comprises a spherical sliding bearing.

6. Drill as defined in claim 1 having a guide pad on a longitudinal pivot axis, in which said axis lies outside the periphery surface of the pad.

7. Drill as defined in claim 1, in which the pivoted guide pad is rockable about longitudinal and transverse axes whereby said guide pad adapts itself to the surface of a hole in which said drill is beingoperated.

I I l l

Claims (7)

1. Drill for drilling in metal having a guide pad adapted to slide with frictional contact along the wall of the drill hole, in which the guide pad is pivotally rockable on at least one axis having the same general direction as the sliding surface of the guide pad and situated at a fixed distance from the drill axis.
2. Drill as defined in claim 1, in which the guide pad is mounted on a sliding bearing with a curved sliding bearing surface.
3. Drill as defined in claim 1 in which the pivot comprises a cylindrical sliding bearing with a longitudinal axis.
4. Drill as defined in claim 3, in which the pivot comprises a second cylindrical sliding bearing with a transverse axis.
5. Drill as defined in claim 1 in which the pivot comprises a spherical sliding bearing.
6. Drill as defined in claim 1 having a guide pad on a longitudinal pivot axis, in which said axis lies outside the periphery surface of the pad.
7. Drill as defined in claim 1, in which the pivoted guide pad is rockable about longitudinal and transverse axes whereby said guide pad adapts itself to the surface of a hole in which said drill is being operated.
US3751177A 1969-11-24 1970-11-20 Guide pad mounting on a drill bit Expired - Lifetime US3751177A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE1608269 1969-11-24

Publications (1)

Publication Number Publication Date
US3751177A true US3751177A (en) 1973-08-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
US3751177A Expired - Lifetime US3751177A (en) 1969-11-24 1970-11-20 Guide pad mounting on a drill bit

Country Status (6)

Country Link
US (1) US3751177A (en)
JP (1) JPS4946837B1 (en)
DE (1) DE2057512C3 (en)
ES (1) ES188230Y (en)
FR (1) FR2072230A5 (en)
GB (1) GB1323607A (en)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2416157A1 (en) * 1974-04-03 1975-10-23 Heller Geb drilling
DE2600225A1 (en) * 1975-01-20 1976-07-22 Sandvik Ab drilling
US4108567A (en) * 1975-01-20 1978-08-22 Sandvik Aktiebolag Boring tool
US4130371A (en) * 1976-07-14 1978-12-19 Sandvik Aktiebolag Cutting insert and rotary cutter tool
US4133399A (en) * 1975-12-18 1979-01-09 Wilhelm Hegenscheidt Gmbh Boring device
US4218162A (en) * 1977-11-02 1980-08-19 Elizabeth Jean Hillier Drilling bit
US4573381A (en) * 1984-02-24 1986-03-04 Top Tech, Inc. Boring device
US4596498A (en) * 1982-07-17 1986-06-24 MAPAL Fabrik fur Prazisions werkzeuge Dr. Kress KG Single bit reamer with improved guide members
US5042596A (en) * 1989-02-21 1991-08-27 Amoco Corporation Imbalance compensated drill bit
US5131478A (en) * 1989-02-21 1992-07-21 Brett J Ford Low friction subterranean drill bit and related methods
US5328304A (en) * 1992-01-31 1994-07-12 Mapal Fabrik Fur Prazisionswerkzeuge Dr. Kress Kg Reamer
US5402856A (en) * 1993-12-21 1995-04-04 Amoco Corporation Anti-whirl underreamer
US5697737A (en) * 1994-09-12 1997-12-16 Sandvik Ab Support pad for drill
US5758997A (en) * 1996-08-07 1998-06-02 Mealey; Michael Self-centering indexable drill
US5921727A (en) * 1998-01-20 1999-07-13 Cogsdill Tool Products, Inc. Reamer with friction resistant layer and method for forming same
US6602028B1 (en) * 1999-06-21 2003-08-05 Sandvik Aktiebolag Support pad for a deep hole drill
US20040265080A1 (en) * 2003-05-20 2004-12-30 Sandvik Ab Edge-carrying drill, method for the manufacture of the drill, and drilling tool comprising such a drill
US20050025594A1 (en) * 2003-05-20 2005-02-03 Sandvik Ab Edge-carrying drill body having an internal chip-removal channel
US20050244237A1 (en) * 2002-12-19 2005-11-03 Joerg Guehring Deep hole drill
JP2006239827A (en) * 2005-03-04 2006-09-14 Yunitakku Kk Drill head for cutting deep hole
US20090297285A1 (en) * 2006-04-07 2009-12-03 Unitac, Inc. Deep hole drilling machine
US20100158623A1 (en) * 2008-12-19 2010-06-24 Sandvik Intellectual Property Ab Drill body as well as support pad therefor
WO2010096005A1 (en) * 2009-02-20 2010-08-26 Seco Tools Ab Guide arrangement for a cutting tool and cutting tool including a guide arrangement
US20120051862A1 (en) * 2010-08-25 2012-03-01 Woodruff Douglas J Stabilization of boring tools
US20120070243A1 (en) * 2009-05-29 2012-03-22 Tungaloy Corporation Reamer
US20120134759A1 (en) * 2010-11-29 2012-05-31 Kennametal Inc. Rotating cutting tool and guide insert therefor
US20130078045A1 (en) * 2010-04-23 2013-03-28 Hermann Randecker Drill head for a deep hole drilling tool for bta deep hole drilling, and deep hole drilling tool
WO2013182810A1 (en) * 2012-06-05 2013-12-12 Snecma Calibration head for the drilling of shafts
US9114460B2 (en) 2011-02-28 2015-08-25 Tungaloy Corporation Guide pad, cutting tool body and cutting tool

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50132795U (en) * 1974-04-17 1975-10-31
JPS5119626A (en) * 1974-08-07 1976-02-17 Yoshiaki Terauchi Kanisekibunjogi
NL7711942A (en) * 1976-11-17 1978-05-19 Sandvik Ab Drill, preferably equipped with adjustable inserts.
DE2750705C2 (en) * 1977-11-12 1987-09-10 Biax-Werkzeuge Kg, Wezel & Co, Praezisionswerkzeugfabrik, 7133 Maulbronn, De
DE3211136C2 (en) * 1982-03-26 1984-01-12 Fried. Krupp Gmbh, 4300 Essen, De
GB9002700D0 (en) * 1990-02-07 1990-04-04 H & B Quickgrind Limited Improvements relating to cutting tools
WO1995016535A1 (en) * 1993-12-16 1995-06-22 Kennametal Hertel Ag Werkzeuge + Hartstoffe Guide element for a cutting tool
JP6119065B2 (en) * 2012-08-01 2017-04-26 株式会社タンガロイ Drill head

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US874848A (en) * 1907-03-15 1907-12-24 J P Karns Tunneling Machine Co Sink-shaft drill.
US875664A (en) * 1906-04-30 1907-12-31 J P Karns Tunneling Machine Co Tunneling-machine.
DE321935C (en) * 1916-05-31 1920-06-15 Berthold Monasch Dr Ing Drilling horizontal Erdbohrungen
GB271839A (en) * 1926-05-25 1928-03-29 U S Tool Company Improvements relating to the hydraulic rotary system of well drilling
GB313802A (en) * 1928-08-09 1929-06-20 Albert Sidney Debose Rotary well drilling apparatus
US1745351A (en) * 1928-10-01 1930-02-04 George G Osborn Drill-bit agitator
US1866082A (en) * 1927-08-10 1932-07-05 Anthony E Carlson Expansion drill bit
US2151646A (en) * 1938-06-28 1939-03-21 Union Oil Co Subsurface speed-up drilling mechanism
US2647726A (en) * 1950-06-30 1953-08-04 Hallen Company Inc Horizontal earth boring machine
FR1221024A (en) * 1958-01-24 1960-05-30 American Iron & Machine Works Pump device for wells

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US875664A (en) * 1906-04-30 1907-12-31 J P Karns Tunneling Machine Co Tunneling-machine.
US874848A (en) * 1907-03-15 1907-12-24 J P Karns Tunneling Machine Co Sink-shaft drill.
DE321935C (en) * 1916-05-31 1920-06-15 Berthold Monasch Dr Ing Drilling horizontal Erdbohrungen
GB271839A (en) * 1926-05-25 1928-03-29 U S Tool Company Improvements relating to the hydraulic rotary system of well drilling
US1866082A (en) * 1927-08-10 1932-07-05 Anthony E Carlson Expansion drill bit
GB313802A (en) * 1928-08-09 1929-06-20 Albert Sidney Debose Rotary well drilling apparatus
US1745351A (en) * 1928-10-01 1930-02-04 George G Osborn Drill-bit agitator
US2151646A (en) * 1938-06-28 1939-03-21 Union Oil Co Subsurface speed-up drilling mechanism
US2647726A (en) * 1950-06-30 1953-08-04 Hallen Company Inc Horizontal earth boring machine
FR1221024A (en) * 1958-01-24 1960-05-30 American Iron & Machine Works Pump device for wells

Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2416157A1 (en) * 1974-04-03 1975-10-23 Heller Geb drilling
DE2600225A1 (en) * 1975-01-20 1976-07-22 Sandvik Ab drilling
US4108567A (en) * 1975-01-20 1978-08-22 Sandvik Aktiebolag Boring tool
US4133399A (en) * 1975-12-18 1979-01-09 Wilhelm Hegenscheidt Gmbh Boring device
US4130371A (en) * 1976-07-14 1978-12-19 Sandvik Aktiebolag Cutting insert and rotary cutter tool
US4218162A (en) * 1977-11-02 1980-08-19 Elizabeth Jean Hillier Drilling bit
US4596498A (en) * 1982-07-17 1986-06-24 MAPAL Fabrik fur Prazisions werkzeuge Dr. Kress KG Single bit reamer with improved guide members
DE3226799C1 (en) * 1982-07-17 1990-04-19 Mapal Fab Praezision Single knife reamer
US4573381A (en) * 1984-02-24 1986-03-04 Top Tech, Inc. Boring device
US5131478A (en) * 1989-02-21 1992-07-21 Brett J Ford Low friction subterranean drill bit and related methods
US5042596A (en) * 1989-02-21 1991-08-27 Amoco Corporation Imbalance compensated drill bit
US5328304A (en) * 1992-01-31 1994-07-12 Mapal Fabrik Fur Prazisionswerkzeuge Dr. Kress Kg Reamer
US5402856A (en) * 1993-12-21 1995-04-04 Amoco Corporation Anti-whirl underreamer
US5697737A (en) * 1994-09-12 1997-12-16 Sandvik Ab Support pad for drill
US5758997A (en) * 1996-08-07 1998-06-02 Mealey; Michael Self-centering indexable drill
US5921727A (en) * 1998-01-20 1999-07-13 Cogsdill Tool Products, Inc. Reamer with friction resistant layer and method for forming same
US6602028B1 (en) * 1999-06-21 2003-08-05 Sandvik Aktiebolag Support pad for a deep hole drill
US7296953B2 (en) 2002-12-19 2007-11-20 Joerg Guehring Deep hole drill
US20050244237A1 (en) * 2002-12-19 2005-11-03 Joerg Guehring Deep hole drill
US20070110529A1 (en) * 2002-12-19 2007-05-17 Joerg Guehring Deep hole drill
US20050025594A1 (en) * 2003-05-20 2005-02-03 Sandvik Ab Edge-carrying drill body having an internal chip-removal channel
US20040265080A1 (en) * 2003-05-20 2004-12-30 Sandvik Ab Edge-carrying drill, method for the manufacture of the drill, and drilling tool comprising such a drill
US7320565B2 (en) * 2003-05-20 2008-01-22 Sandvik Intellectual Property Ab Edge-carrying drill, method for the manufacture of the drill, and drilling tool comprising such a drill
US7326009B2 (en) * 2003-05-20 2008-02-05 Sandvik Intellectual Property Ab Edge-carrying drill body having an internal chip-removal channel
JP2006239827A (en) * 2005-03-04 2006-09-14 Yunitakku Kk Drill head for cutting deep hole
US20090297285A1 (en) * 2006-04-07 2009-12-03 Unitac, Inc. Deep hole drilling machine
US20100158623A1 (en) * 2008-12-19 2010-06-24 Sandvik Intellectual Property Ab Drill body as well as support pad therefor
US8696269B2 (en) * 2008-12-19 2014-04-15 Sandvik Intellectual Property Ab Drill body as well as support pad therefor
EP2398619A1 (en) * 2009-02-20 2011-12-28 Seco Tools Ab Guide arrangement for a cutting tool and cutting tool including a guide arrangement
CN102325624A (en) * 2009-02-20 2012-01-18 山高刀具公司 Guide arrangement for utting tool and cutting tool including uide arrangement
WO2010096005A1 (en) * 2009-02-20 2010-08-26 Seco Tools Ab Guide arrangement for a cutting tool and cutting tool including a guide arrangement
EP2398619A4 (en) * 2009-02-20 2012-07-04 Seco Tools Ab Guide arrangement for a cutting tool and cutting tool including a guide arrangement
US8770896B2 (en) * 2009-05-29 2014-07-08 Tungaloy Corporation Reamer
US20120070243A1 (en) * 2009-05-29 2012-03-22 Tungaloy Corporation Reamer
US20130078045A1 (en) * 2010-04-23 2013-03-28 Hermann Randecker Drill head for a deep hole drilling tool for bta deep hole drilling, and deep hole drilling tool
US8511946B2 (en) * 2010-08-25 2013-08-20 Rotary Technologies Corporation Stabilization of boring tools
US20120051862A1 (en) * 2010-08-25 2012-03-01 Woodruff Douglas J Stabilization of boring tools
US20120134759A1 (en) * 2010-11-29 2012-05-31 Kennametal Inc. Rotating cutting tool and guide insert therefor
US8801343B2 (en) * 2010-11-29 2014-08-12 Kennametal Inc. Rotating cutting tool and guide insert therefor
US9114460B2 (en) 2011-02-28 2015-08-25 Tungaloy Corporation Guide pad, cutting tool body and cutting tool
CN103402677B (en) * 2011-02-28 2015-11-25 株式会社钨钛合金 The guide block, the cutting tool body and a cutting tool
US9815130B2 (en) 2012-06-05 2017-11-14 Snecma Calibration head for the drilling of shafts
WO2013182810A1 (en) * 2012-06-05 2013-12-12 Snecma Calibration head for the drilling of shafts

Also Published As

Publication number Publication date Type
GB1323607A (en) 1973-07-18 application
DE2057512C3 (en) 1974-05-30 grant
DE2057512A1 (en) 1971-06-09 application
FR2072230A5 (en) 1971-09-24 application
ES188230Y (en) 1974-09-16 grant
ES188230U (en) 1974-01-16 application
DE2057512B2 (en) 1973-10-18 application
JPS4946837B1 (en) 1974-12-12 grant

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AS Assignment

Owner name: SANTRADE LTD., ALPENQUAI 12, CH-6002 LUCERNE, SWIT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SANDVIK STEEL OF COLORADO, INC., A CORP. OF CO;REEL/FRAME:004091/0836

Effective date: 19830125