CA1022775A - Twist drills - Google Patents

Twist drills

Info

Publication number
CA1022775A
CA1022775A CA226,654A CA226654A CA1022775A CA 1022775 A CA1022775 A CA 1022775A CA 226654 A CA226654 A CA 226654A CA 1022775 A CA1022775 A CA 1022775A
Authority
CA
Canada
Prior art keywords
twist drills
drills
twist
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
CA226,654A
Other languages
English (en)
French (fr)
Inventor
Keith Siddall
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.)
OSBORN-MUSHET TOOLS Ltd
Original Assignee
OSBORN-MUSHET TOOLS 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 OSBORN-MUSHET TOOLS Ltd filed Critical OSBORN-MUSHET TOOLS Ltd
Application granted granted Critical
Publication of CA1022775A publication Critical patent/CA1022775A/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
    • B23B2251/04—Angles, e.g. cutting angles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/04—Angles, e.g. cutting angles
    • B23B2251/043—Helix angles
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
CA226,654A 1974-05-17 1975-05-09 Twist drills Expired CA1022775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22130/74A GB1509912A (en) 1974-05-17 1974-05-17 Twist drills

Publications (1)

Publication Number Publication Date
CA1022775A true CA1022775A (en) 1977-12-20

Family

ID=10174379

Family Applications (1)

Application Number Title Priority Date Filing Date
CA226,654A Expired CA1022775A (en) 1974-05-17 1975-05-09 Twist drills

Country Status (15)

Country Link
JP (1) JPS50156790A (de)
AU (1) AU500271B2 (de)
BR (1) BR7503011A (de)
CA (1) CA1022775A (de)
DE (1) DE2521938C3 (de)
ES (1) ES437919A1 (de)
FR (1) FR2270978A1 (de)
GB (1) GB1509912A (de)
IE (1) IE41050B1 (de)
IL (1) IL47302A (de)
IN (1) IN144887B (de)
IT (1) IT1038197B (de)
NL (1) NL7505612A (de)
SE (1) SE7505581L (de)
ZA (1) ZA753040B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331286A (en) * 1976-09-02 1978-03-24 Riyousuke Hosoi Ball end mill
SE8300910L (sv) * 1983-02-18 1984-08-19 Santrade Ltd Sammansatt kropp bestaende av ett substrat belagt med hart, slitstarkt ytskikt
GB2184046B (en) * 1985-12-13 1990-01-24 Skf & Dormer Tools Twist drill
JPS634211U (de) * 1986-06-23 1988-01-12
JPH03502664A (ja) * 1988-10-21 1991-06-20 ズブコフ　アレクセイ　ウラディミロヴィッチ スパイラルドリル
US6916139B2 (en) * 2001-07-10 2005-07-12 Mitsubishi Materials Corporation Drill
JP2006055965A (ja) * 2004-08-23 2006-03-02 Osg Corp 低加工硬化超硬ドリル
EP2399700A4 (de) * 2009-02-20 2013-10-30 Osg Corp Gewindeschneider mit bohrer

Also Published As

Publication number Publication date
IL47302A0 (en) 1975-07-28
IN144887B (de) 1978-07-22
FR2270978A1 (de) 1975-12-12
AU8125675A (en) 1976-11-25
GB1509912A (en) 1978-05-04
IT1038197B (it) 1979-11-20
DE2521938B2 (de) 1979-07-05
DE2521938A1 (de) 1975-11-27
AU500271B2 (en) 1979-05-17
IE41050L (en) 1975-11-17
NL7505612A (nl) 1975-11-19
IE41050B1 (en) 1979-10-10
JPS50156790A (de) 1975-12-18
DE2521938C3 (de) 1980-03-06
SE7505581L (sv) 1975-11-18
IL47302A (en) 1978-03-10
ES437919A1 (es) 1977-01-01
ZA753040B (en) 1976-04-28
BR7503011A (pt) 1976-04-20

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