GB2028190B - Twist drill and twist drill grinding apparatus - Google Patents

Twist drill and twist drill grinding apparatus

Info

Publication number
GB2028190B
GB2028190B GB7929117A GB7929117A GB2028190B GB 2028190 B GB2028190 B GB 2028190B GB 7929117 A GB7929117 A GB 7929117A GB 7929117 A GB7929117 A GB 7929117A GB 2028190 B GB2028190 B GB 2028190B
Authority
GB
United Kingdom
Prior art keywords
twist drill
grinding apparatus
twist
drill grinding
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
GB7929117A
Other versions
GB2028190A (en
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.)
KAWARAGI Manufacturing CO Ltd
Original Assignee
KAWARAGI Manufacturing CO 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
Priority claimed from JP10139078A external-priority patent/JPS5531523A/en
Priority claimed from JP8804479A external-priority patent/JPS5615959A/en
Application filed by KAWARAGI Manufacturing CO Ltd filed Critical KAWARAGI Manufacturing CO Ltd
Publication of GB2028190A publication Critical patent/GB2028190A/en
Application granted granted Critical
Publication of GB2028190B publication Critical patent/GB2028190B/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
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
    • B24B3/26—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of the point of 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
    • B23B2251/18—Configuration of the drill point

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
GB7929117A 1978-08-22 1979-08-21 Twist drill and twist drill grinding apparatus Expired GB2028190B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10139078A JPS5531523A (en) 1978-08-22 1978-08-22 Twist drill
JP8804479A JPS5615959A (en) 1979-07-13 1979-07-13 Twist drill grinder

Publications (2)

Publication Number Publication Date
GB2028190A GB2028190A (en) 1980-03-05
GB2028190B true GB2028190B (en) 1982-06-16

Family

ID=26429483

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7929117A Expired GB2028190B (en) 1978-08-22 1979-08-21 Twist drill and twist drill grinding apparatus

Country Status (5)

Country Link
CA (1) CA1124108A (en)
DE (1) DE2933632A1 (en)
GB (1) GB2028190B (en)
NL (1) NL7906147A (en)
SE (1) SE7906970L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507115A1 (en) * 1981-06-04 1982-12-10 Atelier Rectification Affutage DRILLING TOOL COMPRISING AT LEAST THREE GOUJURES
DE3219341C2 (en) * 1982-05-22 1985-04-25 Günther & Co GmbH & Co, 6000 Frankfurt Twist drill
DE4406059A1 (en) * 1994-02-24 1995-10-12 Anton Wimmer Gmbh Werkzeug Und Tightening device for drill bits and milling cutters
DE19955172A1 (en) * 1999-11-16 2001-05-23 Kennametal Inc Method of grinding a drill bit and drill bit
CN104841983A (en) * 2015-05-29 2015-08-19 东莞豪顺家具有限公司 Machining tool of rivet with bottom hole and for back plate
CN209849949U (en) 2018-01-29 2019-12-27 米沃奇电动工具公司 Drill bit
CN209157232U (en) 2018-10-09 2019-07-26 米沃奇电动工具公司 Drill bit

Also Published As

Publication number Publication date
GB2028190A (en) 1980-03-05
NL7906147A (en) 1980-02-26
DE2933632A1 (en) 1980-02-28
CA1124108A (en) 1982-05-25
SE7906970L (en) 1980-02-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee