GB2184046B - Twist drill - Google Patents

Twist drill

Info

Publication number
GB2184046B
GB2184046B GB8530752A GB8530752A GB2184046B GB 2184046 B GB2184046 B GB 2184046B GB 8530752 A GB8530752 A GB 8530752A GB 8530752 A GB8530752 A GB 8530752A GB 2184046 B GB2184046 B GB 2184046B
Authority
GB
United Kingdom
Prior art keywords
twist drill
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
Application number
GB8530752A
Other versions
GB2184046A (en
GB8530752D0 (en
Inventor
Frank Wallace
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.)
Dormer Pramet Ltd
Original Assignee
SKF and Dormer Tools Sheffield Ltd
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
Application filed by SKF and Dormer Tools Sheffield Ltd filed Critical SKF and Dormer Tools Sheffield Ltd
Priority to GB8530752A priority Critical patent/GB2184046B/en
Publication of GB8530752D0 publication Critical patent/GB8530752D0/en
Publication of GB2184046A publication Critical patent/GB2184046A/en
Application granted granted Critical
Publication of GB2184046B publication Critical patent/GB2184046B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/08—Side or plan views of cutting edges
    • B23B2251/082—Curved cutting edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/24—Overall form of drilling tools
    • B23B2251/241—Cross sections of the diameter of the drill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/40—Flutes, i.e. chip conveying grooves
    • B23B2251/406—Flutes, i.e. chip conveying grooves of special form not otherwise provided for
GB8530752A 1985-12-13 1985-12-13 Twist drill Expired GB2184046B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8530752A GB2184046B (en) 1985-12-13 1985-12-13 Twist drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8530752A GB2184046B (en) 1985-12-13 1985-12-13 Twist drill

Publications (3)

Publication Number Publication Date
GB8530752D0 GB8530752D0 (en) 1986-01-22
GB2184046A GB2184046A (en) 1987-06-17
GB2184046B true GB2184046B (en) 1990-01-24

Family

ID=10589716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8530752A Expired GB2184046B (en) 1985-12-13 1985-12-13 Twist drill

Country Status (1)

Country Link
GB (1) GB2184046B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9606370D0 (en) * 1996-03-26 1996-06-05 Dormer Tools Sheffield Ltd Improvements in or relating to twist drills
GB0320148D0 (en) 2003-08-28 2003-10-01 Dormer Tools Sheffield Ltd Partially coated drill tool
DE10353514A1 (en) * 2003-11-14 2005-06-23 Heule, Ulf Drilling plate with clamping attachment in a base body
GB2428611B (en) 2005-08-02 2007-10-03 Dormer Tools Twist drill
CN101472696A (en) * 2006-06-23 2009-07-01 Osg株式会社 Drill head
DE102009030689B4 (en) * 2008-06-28 2022-08-25 Gühring KG Multi-edged drilling tool
JP5800477B2 (en) * 2010-08-06 2015-10-28 株式会社イワタツール drill
DE202014007558U1 (en) 2014-09-22 2014-11-18 Wpt Nord Gmbh Drilling tool for modification of a blind hole
CN111975051A (en) * 2019-05-24 2020-11-24 江苏叁陆零工具有限公司 Novel high-speed steel shrinkage shank twist drill

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1194157A (en) * 1967-05-11 1970-06-10 Radial Lip Drill Corp Improvements in or relating to Drills.
GB1509912A (en) * 1974-05-17 1978-05-04 Osborn Mushet Tools Ltd Twist drills
JPS5621711A (en) * 1979-07-24 1981-02-28 Sumitomo Electric Ind Ltd Drilling tool
GB2123039A (en) * 1982-03-23 1984-01-25 Atomic Energy Authority Uk Coatings for cutting implements
DE3325149A1 (en) * 1983-07-12 1985-01-24 Gühring, Gottlieb, 7470 Albstadt Two-lipped twist drill as a combined centring, drilling and boring tool
JPS60114407A (en) * 1983-11-24 1985-06-20 Sumitomo Electric Ind Ltd Drill

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1194157A (en) * 1967-05-11 1970-06-10 Radial Lip Drill Corp Improvements in or relating to Drills.
GB1509912A (en) * 1974-05-17 1978-05-04 Osborn Mushet Tools Ltd Twist drills
JPS5621711A (en) * 1979-07-24 1981-02-28 Sumitomo Electric Ind Ltd Drilling tool
GB2123039A (en) * 1982-03-23 1984-01-25 Atomic Energy Authority Uk Coatings for cutting implements
DE3325149A1 (en) * 1983-07-12 1985-01-24 Gühring, Gottlieb, 7470 Albstadt Two-lipped twist drill as a combined centring, drilling and boring tool
JPS60114407A (en) * 1983-11-24 1985-06-20 Sumitomo Electric Ind Ltd Drill

Also Published As

Publication number Publication date
GB2184046A (en) 1987-06-17
GB8530752D0 (en) 1986-01-22

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20051212