AU5801573A - An improvements in or relating to twist drills - Google Patents

An improvements in or relating to twist drills

Info

Publication number
AU5801573A
AU5801573A AU58015/73A AU5801573A AU5801573A AU 5801573 A AU5801573 A AU 5801573A AU 58015/73 A AU58015/73 A AU 58015/73A AU 5801573 A AU5801573 A AU 5801573A AU 5801573 A AU5801573 A AU 5801573A
Authority
AU
Australia
Prior art keywords
relating
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
AU58015/73A
Other versions
AU470924B2 (en
Inventor
Siddall Keith
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 AU5801573A publication Critical patent/AU5801573A/en
Application granted granted Critical
Publication of AU470924B2 publication Critical patent/AU470924B2/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
    • B23B2251/18—Configuration of the drill point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/20—Number of cutting edges
    • B23B2251/204—Four 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
    • B23B2251/44—Margins, i.e. the narrow portion of the land which is not cut away to provide clearance on the circumferential surface
    • B23B2251/443—Double margin drills
AU58015/73A 1972-07-21 1973-07-12 An improvements in or relating to twist drills Expired AU470924B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB34325/72 1972-07-21
GB3432572A GB1432546A (en) 1972-07-21 1972-07-21 Twist drills

Publications (2)

Publication Number Publication Date
AU5801573A true AU5801573A (en) 1975-01-16
AU470924B2 AU470924B2 (en) 1976-04-01

Family

ID=10364237

Family Applications (1)

Application Number Title Priority Date Filing Date
AU58015/73A Expired AU470924B2 (en) 1972-07-21 1973-07-12 An improvements in or relating to twist drills

Country Status (18)

Country Link
JP (1) JPS49124690A (en)
AT (1) AT324072B (en)
AU (1) AU470924B2 (en)
BE (1) BE802619A (en)
CA (1) CA986338A (en)
CH (1) CH558696A (en)
CS (1) CS181722B2 (en)
DD (1) DD108226A5 (en)
DE (1) DE2336886A1 (en)
ES (1) ES417523A1 (en)
FR (1) FR2193673B1 (en)
GB (1) GB1432546A (en)
IL (1) IL42761A (en)
IN (1) IN138434B (en)
IT (1) IT991331B (en)
NL (1) NL7310188A (en)
SE (1) SE396027B (en)
ZA (1) ZA734644B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923925B2 (en) * 1975-12-29 1984-06-06 カブシキガイシヤ ササクラキカイセイサクシヨ Drill reamer
JPS52160183U (en) * 1976-05-28 1977-12-05
JPS541102Y2 (en) * 1976-06-10 1979-01-19
JPS59140116U (en) * 1983-03-07 1984-09-19 富士精工株式会社 Twist drill with guide part
DE3325149A1 (en) * 1983-07-12 1985-01-24 Gühring, Gottlieb, 7470 Albstadt Two-lipped twist drill as a combined centring, drilling and boring tool
JPS61249209A (en) * 1985-12-23 1986-11-06 Toyoda Gosei Co Ltd Reamer
CH670968A5 (en) * 1986-11-25 1989-07-31 Sphinxwerke Mueller Ag
US4756650A (en) * 1986-11-26 1988-07-12 Kabushiki Kaisha Kobe Seiko Sho Twist drill
DE3820485C1 (en) * 1988-06-16 1989-08-24 Helmut Dipl.-Ing. 1000 Berlin De Krauss Helical flutes in drill bit - incorporates straight sloping sides and circular rounded floor portion
JPH0731926Y2 (en) * 1989-01-10 1995-07-26 愛三工業株式会社 High feed burnishing drill
GB9606370D0 (en) * 1996-03-26 1996-06-05 Dormer Tools Sheffield Ltd Improvements in or relating to twist drills
GB2393681A (en) * 2002-10-03 2004-04-07 Black & Decker Inc Masonry drilling tool
JP2006095662A (en) * 2004-09-30 2006-04-13 Omi Kogyo Co Ltd Burnishing boring tool
DE102009039170B4 (en) 2009-08-27 2022-01-20 Kennametal Inc. drilling tool
JP5939001B2 (en) * 2012-01-16 2016-06-22 三菱日立ツール株式会社 drill
JP2017202541A (en) * 2016-05-11 2017-11-16 有限会社栄進機工 Drill reamer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2063753A (en) * 1932-09-27 1936-12-08 Edward J Pohlman Reamer

Also Published As

Publication number Publication date
CA986338A (en) 1976-03-30
JPS49124690A (en) 1974-11-28
CS181722B2 (en) 1978-03-31
DE2336886A1 (en) 1974-01-31
IN138434B (en) 1976-01-31
BE802619A (en) 1973-11-16
FR2193673B1 (en) 1977-08-12
ES417523A1 (en) 1976-03-01
FR2193673A1 (en) 1974-02-22
IT991331B (en) 1975-07-30
IL42761A0 (en) 1973-10-25
CH558696A (en) 1975-02-14
ZA734644B (en) 1974-06-26
AT324072B (en) 1975-08-11
SE396027B (en) 1977-09-05
IL42761A (en) 1977-05-31
GB1432546A (en) 1976-04-22
DD108226A5 (en) 1974-09-12
NL7310188A (en) 1974-01-23
AU470924B2 (en) 1976-04-01

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