CA986338A - Twist drills - Google Patents

Twist drills

Info

Publication number
CA986338A
CA986338A CA176,008A CA176008A CA986338A CA 986338 A CA986338 A CA 986338A CA 176008 A CA176008 A CA 176008A CA 986338 A CA986338 A CA 986338A
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
CA176,008A
Other languages
English (en)
Other versions
CA176008S (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
Application granted granted Critical
Publication of CA986338A publication Critical patent/CA986338A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
CA176,008A 1972-07-21 1973-07-09 Twist drills Expired CA986338A (en)

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
CA986338A true CA986338A (en) 1976-03-30

Family

ID=10364237

Family Applications (1)

Application Number Title Priority Date Filing Date
CA176,008A Expired CA986338A (en) 1972-07-21 1973-07-09 Twist drills

Country Status (18)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9085033B2 (en) 2009-08-27 2015-07-21 Kennametal Inc. Drilling tool

Families Citing this family (15)

* 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 (fr) * 1976-05-28 1977-12-05
JPS541102Y2 (fr) * 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
DE3325149A1 (de) * 1983-07-12 1985-01-24 Gühring, Gottlieb, 7470 Albstadt Zweischneidiges wendelbohrwerkzeug als kombiniertes zentrier-, bohr- und aufbohrwerkzeug
JPS61249209A (ja) * 1985-12-23 1986-11-06 Toyoda Gosei Co Ltd リ−マ
CH670968A5 (fr) * 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 (ja) * 1989-01-10 1995-07-26 愛三工業株式会社 高送り用バニシングドリル
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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9085033B2 (en) 2009-08-27 2015-07-21 Kennametal Inc. Drilling tool

Also Published As

Publication number Publication date
IL42761A (en) 1977-05-31
FR2193673B1 (fr) 1977-08-12
AU5801573A (en) 1975-01-16
IT991331B (it) 1975-07-30
CS181722B2 (en) 1978-03-31
DD108226A5 (fr) 1974-09-12
SE396027B (sv) 1977-09-05
ZA734644B (en) 1974-06-26
IL42761A0 (en) 1973-10-25
AU470924B2 (en) 1976-04-01
BE802619A (fr) 1973-11-16
AT324072B (de) 1975-08-11
CH558696A (de) 1975-02-14
JPS49124690A (fr) 1974-11-28
DE2336886A1 (de) 1974-01-31
ES417523A1 (es) 1976-03-01
FR2193673A1 (fr) 1974-02-22
NL7310188A (fr) 1974-01-23
IN138434B (fr) 1976-01-31
GB1432546A (en) 1976-04-22

Similar Documents

Publication Publication Date Title
AU457870B2 (en) Tool
CA981944A (en) Drill screw
CA987353A (en) Mine tool
CA923489A (en) Drilling machine
CA988905A (en) Chuck
CA969783A (en) Drill guide
AU467016B2 (en) Percussion bits
CA986338A (en) Twist drills
AU476751B2 (en) Percussion arrangements
GB1414268A (en) Double twist spindle
SU578420A1 (ru) Буровое долото
AU473903B2 (en) Drill screw
SU570685A1 (ru) Бурова установка
SU621484A1 (ru) Борштанга
CA937003A (en) Combination tool
AU457353B2 (en) Drill
CA872107A (en) Drilling machines
CA903457A (en) Form tool
CA917403A (en) Well drilling
CA953856A (en) Combination tool
CA890686A (en) Drilling machine
CA973538A (en) Drill bit
CA913059A (en) Drill bit
AU445235B2 (en) Drill
CA878849A (en) Drill