GB570099A - A combined twist drill and countersinking or counterboring attachment - Google Patents
A combined twist drill and countersinking or counterboring attachmentInfo
- Publication number
- GB570099A GB570099A GB2125743A GB2125743A GB570099A GB 570099 A GB570099 A GB 570099A GB 2125743 A GB2125743 A GB 2125743A GB 2125743 A GB2125743 A GB 2125743A GB 570099 A GB570099 A GB 570099A
- Authority
- GB
- United Kingdom
- Prior art keywords
- counterboring
- countersinking
- attachment
- cutter
- twist drill
- 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
Links
Classifications
-
- 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
- B23B51/104—Bits for countersinking with stops
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
570,099. Drills and cutters. TAYLOR, A. E. Dec. 18, 1943, Nos. 21257/43 and 6085/44. [Class 83 (iii)] A countersinking or counterboring attachment to a twist drill comprises a cutter c, Fig. 1, integral with a stop flange b and a split clamping sleeve d taper threaded for a nut e. The flange b is gapped at b<2> to facilitate the sharpening of the cutting-teeth. In a modification, the depth stop is formed on a second split sleeve adjustably clamped on the sleeve d. In a further form the body of the cutter c is located on the drill by a screw j engaging one groove and clamped by a screw k engaging another groove. The stop collar b is screwed onto the cutter body and locked, after adjustment, at g. The work-contacting face of the collar may be be on a rotatable washer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2125743A GB570099A (en) | 1943-12-18 | 1943-12-18 | A combined twist drill and countersinking or counterboring attachment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2125743A GB570099A (en) | 1943-12-18 | 1943-12-18 | A combined twist drill and countersinking or counterboring attachment |
Publications (1)
Publication Number | Publication Date |
---|---|
GB570099A true GB570099A (en) | 1945-06-21 |
Family
ID=10159857
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2125743A Expired GB570099A (en) | 1943-12-18 | 1943-12-18 | A combined twist drill and countersinking or counterboring attachment |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB570099A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2123322A (en) * | 1981-02-04 | 1984-02-01 | Fredrick Thomas Stephenson | Drill bits with countersinking means |
WO1987000100A1 (en) * | 1985-07-01 | 1987-01-15 | Caterpillar Inc. | Adjustable length chamfering tool |
US5071295A (en) * | 1989-04-07 | 1991-12-10 | Sandvik Limited | Cutters |
GB2246530A (en) * | 1990-08-01 | 1992-02-05 | Richard Louis Mitchell | Countersink collar |
GB2334466A (en) * | 1998-02-18 | 1999-08-25 | Switchgear Maintenance | Drilling tool with scraping attachment |
GB2393676A (en) * | 2002-10-02 | 2004-04-07 | James Philip Turner | Bit attachment adapted to create a countersink chamfer |
CN108247780A (en) * | 2017-12-28 | 2018-07-06 | 浙江浪潮精密机械有限公司 | A kind of drilling depth positions adjustable counter bore bit and drilling depth adjusting method |
CN109317729A (en) * | 2018-11-14 | 2019-02-12 | 大连崇达电路有限公司 | A kind of not isometrical counter bore processing cutter |
US10835969B1 (en) * | 2018-06-29 | 2020-11-17 | Andrew James Scaglione | Self-aligning counter bore cutting tool and method of operation |
CN112191892A (en) * | 2020-09-23 | 2021-01-08 | 中国五冶集团有限公司 | Drill bit for processing counter bore and drilling method thereof |
-
1943
- 1943-12-18 GB GB2125743A patent/GB570099A/en not_active Expired
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2123322A (en) * | 1981-02-04 | 1984-02-01 | Fredrick Thomas Stephenson | Drill bits with countersinking means |
WO1987000100A1 (en) * | 1985-07-01 | 1987-01-15 | Caterpillar Inc. | Adjustable length chamfering tool |
US5071295A (en) * | 1989-04-07 | 1991-12-10 | Sandvik Limited | Cutters |
GB2246530A (en) * | 1990-08-01 | 1992-02-05 | Richard Louis Mitchell | Countersink collar |
GB2334466A (en) * | 1998-02-18 | 1999-08-25 | Switchgear Maintenance | Drilling tool with scraping attachment |
GB2334466B (en) * | 1998-02-18 | 2003-02-12 | Switchgear Maintenance | Drilling tool |
GB2393676A (en) * | 2002-10-02 | 2004-04-07 | James Philip Turner | Bit attachment adapted to create a countersink chamfer |
CN108247780A (en) * | 2017-12-28 | 2018-07-06 | 浙江浪潮精密机械有限公司 | A kind of drilling depth positions adjustable counter bore bit and drilling depth adjusting method |
US10835969B1 (en) * | 2018-06-29 | 2020-11-17 | Andrew James Scaglione | Self-aligning counter bore cutting tool and method of operation |
CN109317729A (en) * | 2018-11-14 | 2019-02-12 | 大连崇达电路有限公司 | A kind of not isometrical counter bore processing cutter |
CN112191892A (en) * | 2020-09-23 | 2021-01-08 | 中国五冶集团有限公司 | Drill bit for processing counter bore and drilling method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB570099A (en) | A combined twist drill and countersinking or counterboring attachment | |
GB622342A (en) | Metal cutting tools | |
GB1139664A (en) | Improvements in or relating to chucks | |
ES339992A1 (en) | System for cutting threads | |
GB640527A (en) | Improvements in or relating to single point cutting tools | |
GB559442A (en) | Improvements in tool-holders for lathes and other metal cutting mechanisms | |
GB204953A (en) | Improvements in and relating to turning tools | |
GB570098A (en) | Improvements in centre and like drills | |
GB844213A (en) | Improvements in milling cutters or like rotary tools | |
GB562657A (en) | Improvements in taps, reamers and the like | |
GB598240A (en) | Improvements in or relating to holders for boring tools | |
GB1257777A (en) | ||
GB588052A (en) | Improvements in tool holders for lathes or the like metal cutting machines | |
GB880901A (en) | A micro-adjusted boring, turning or milling tool | |
GB577300A (en) | Improvements relating to countersinking and other rotary tools | |
GB555111A (en) | Improvements in milling cutters, reamers and the like | |
GB142629A (en) | Improvements in or relating to cutting or boring tools or boring heads | |
GB644902A (en) | Improvements in centering or setting devices for drilling or other machine tools | |
GB821636A (en) | Improvements in lathe and like tool holders and cutters | |
GB916112A (en) | Adjustable tool holder | |
GB627279A (en) | Improvements relating to milling cutters and arbors therefor | |
GB575212A (en) | Improvements in tool holders for use with machine tools | |
GB655420A (en) | Improvements in or relating to milling cutters and like cutting tools | |
GB678873A (en) | Improvements in chucks for drills, reamers, milling cutters and like tools | |
GB558733A (en) | Improvements in or relating to drill chucks |