AU500271B2 - Twist drill - Google Patents

Twist drill

Info

Publication number
AU500271B2
AU500271B2 AU81256/75A AU8125675A AU500271B2 AU 500271 B2 AU500271 B2 AU 500271B2 AU 81256/75 A AU81256/75 A AU 81256/75A AU 8125675 A AU8125675 A AU 8125675A AU 500271 B2 AU500271 B2 AU 500271B2
Authority
AU
Australia
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
AU81256/75A
Other languages
English (en)
Other versions
AU8125675A (en
Inventor
K 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
Publication of AU8125675A publication Critical patent/AU8125675A/en
Application granted granted Critical
Publication of AU500271B2 publication Critical patent/AU500271B2/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)
AU81256/75A 1974-05-17 1975-05-19 Twist drill Expired AU500271B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB22100/74 1974-05-17
GB22130/74A GB1509912A (en) 1974-05-17 1974-05-17 Twist drills

Publications (2)

Publication Number Publication Date
AU8125675A AU8125675A (en) 1976-11-25
AU500271B2 true AU500271B2 (en) 1979-05-17

Family

ID=10174379

Family Applications (1)

Application Number Title Priority Date Filing Date
AU81256/75A Expired AU500271B2 (en) 1974-05-17 1975-05-19 Twist drill

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
DE3891420T1 (de) * 1988-10-21 1990-11-22 Aleksej Vladimirovic Cubkov Spiralbohrer
EP2366478B1 (de) * 2001-07-10 2020-04-15 Mitsubishi Materials Corporation Bohrer
JP2006055965A (ja) * 2004-08-23 2006-03-02 Osg Corp 低加工硬化超硬ドリル
JP5301647B2 (ja) * 2009-02-20 2013-09-25 オーエスジー株式会社 ドリル付きタップ、およびめねじ加工方法

Also Published As

Publication number Publication date
IL47302A (en) 1978-03-10
BR7503011A (pt) 1976-04-20
IT1038197B (it) 1979-11-20
IN144887B (de) 1978-07-22
DE2521938A1 (de) 1975-11-27
DE2521938B2 (de) 1979-07-05
ZA753040B (en) 1976-04-28
DE2521938C3 (de) 1980-03-06
ES437919A1 (es) 1977-01-01
CA1022775A (en) 1977-12-20
IE41050B1 (en) 1979-10-10
IL47302A0 (en) 1975-07-28
IE41050L (en) 1975-11-17
SE7505581L (sv) 1975-11-18
JPS50156790A (de) 1975-12-18
AU8125675A (en) 1976-11-25
FR2270978A1 (de) 1975-12-12
NL7505612A (nl) 1975-11-19
GB1509912A (en) 1978-05-04

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