DE2336886A1 - Spiralbohrer - Google Patents

Spiralbohrer

Info

Publication number
DE2336886A1
DE2336886A1 DE19732336886 DE2336886A DE2336886A1 DE 2336886 A1 DE2336886 A1 DE 2336886A1 DE 19732336886 DE19732336886 DE 19732336886 DE 2336886 A DE2336886 A DE 2336886A DE 2336886 A1 DE2336886 A1 DE 2336886A1
Authority
DE
Germany
Prior art keywords
drill
main
web
webs
diameter
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.)
Pending
Application number
DE19732336886
Other languages
German (de)
English (en)
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
Publication of DE2336886A1 publication Critical patent/DE2336886A1/de
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
DE19732336886 1972-07-21 1973-07-19 Spiralbohrer Pending DE2336886A1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE2336886A1 true DE2336886A1 (de) 1974-01-31

Family

ID=10364237

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732336886 Pending DE2336886A1 (de) 1972-07-21 1973-07-19 Spiralbohrer

Country Status (18)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325149A1 (de) * 1983-07-12 1985-01-24 Gühring, Gottlieb, 7470 Albstadt Zweischneidiges wendelbohrwerkzeug als kombiniertes zentrier-, bohr- und aufbohrwerkzeug
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
DE3923754A1 (de) * 1989-01-10 1990-07-12 Aisan Ind Glaettbohrer
WO2011023288A1 (de) * 2009-08-27 2011-03-03 Kennametal Inc. Bohrwerkzeug

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923925B2 (ja) * 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 ドリルリ−マ−フクゴウセンコウグ
JPS52160183U (es) * 1976-05-28 1977-12-05
JPS541102Y2 (es) * 1976-06-10 1979-01-19
JPS59140116U (ja) * 1983-03-07 1984-09-19 富士精工株式会社 ガイド部付ツイストドリル
JPS61249209A (ja) * 1985-12-23 1986-11-06 Toyoda Gosei Co Ltd リ−マ
CH670968A5 (es) * 1986-11-25 1989-07-31 Sphinxwerke Mueller Ag
US4756650A (en) * 1986-11-26 1988-07-12 Kabushiki Kaisha Kobe Seiko Sho Twist 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 (ja) * 2004-09-30 2006-04-13 Omi Kogyo Co Ltd バニシング穴あけ工具
JP5939001B2 (ja) * 2012-01-16 2016-06-22 三菱日立ツール株式会社 ドリル
JP2017202541A (ja) * 2016-05-11 2017-11-16 有限会社栄進機工 ドリルリーマ

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325149A1 (de) * 1983-07-12 1985-01-24 Gühring, Gottlieb, 7470 Albstadt Zweischneidiges wendelbohrwerkzeug als kombiniertes zentrier-, bohr- und aufbohrwerkzeug
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
DE3923754A1 (de) * 1989-01-10 1990-07-12 Aisan Ind Glaettbohrer
WO2011023288A1 (de) * 2009-08-27 2011-03-03 Kennametal Inc. Bohrwerkzeug
US9085033B2 (en) 2009-08-27 2015-07-21 Kennametal Inc. Drilling tool

Also Published As

Publication number Publication date
ZA734644B (en) 1974-06-26
JPS49124690A (es) 1974-11-28
BE802619A (fr) 1973-11-16
AU470924B2 (en) 1976-04-01
GB1432546A (en) 1976-04-22
IL42761A0 (en) 1973-10-25
CA986338A (en) 1976-03-30
FR2193673A1 (es) 1974-02-22
SE396027B (sv) 1977-09-05
CS181722B2 (en) 1978-03-31
IN138434B (es) 1976-01-31
IT991331B (it) 1975-07-30
CH558696A (de) 1975-02-14
FR2193673B1 (es) 1977-08-12
AT324072B (de) 1975-08-11
ES417523A1 (es) 1976-03-01
NL7310188A (es) 1974-01-23
AU5801573A (en) 1975-01-16
DD108226A5 (es) 1974-09-12
IL42761A (en) 1977-05-31

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