IT1038197B - TWIST DRILL IN PARTICULAR FOR DRILLS - Google Patents

TWIST DRILL IN PARTICULAR FOR DRILLS

Info

Publication number
IT1038197B
IT1038197B IT23421/75A IT2342175A IT1038197B IT 1038197 B IT1038197 B IT 1038197B IT 23421/75 A IT23421/75 A IT 23421/75A IT 2342175 A IT2342175 A IT 2342175A IT 1038197 B IT1038197 B IT 1038197B
Authority
IT
Italy
Prior art keywords
drills
twist drill
twist
drill
Prior art date
Application number
IT23421/75A
Other languages
Italian (it)
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 IT1038197B publication Critical patent/IT1038197B/en

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)
IT23421/75A 1974-05-17 1975-05-16 TWIST DRILL IN PARTICULAR FOR DRILLS IT1038197B (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
IT1038197B true IT1038197B (en) 1979-11-20

Family

ID=10174379

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23421/75A IT1038197B (en) 1974-05-17 1975-05-16 TWIST DRILL IN PARTICULAR FOR DRILLS

Country Status (15)

Country Link
JP (1) JPS50156790A (en)
AU (1) AU500271B2 (en)
BR (1) BR7503011A (en)
CA (1) CA1022775A (en)
DE (1) DE2521938C3 (en)
ES (1) ES437919A1 (en)
FR (1) FR2270978A1 (en)
GB (1) GB1509912A (en)
IE (1) IE41050B1 (en)
IL (1) IL47302A (en)
IN (1) IN144887B (en)
IT (1) IT1038197B (en)
NL (1) NL7505612A (en)
SE (1) SE7505581L (en)
ZA (1) ZA753040B (en)

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 (en) * 1983-02-18 1984-08-19 Santrade Ltd COMPOSITION BODY CONSISTS OF A SUBSTRATE COATED WITH HEART, Wear-resistant finish
GB2184046B (en) * 1985-12-13 1990-01-24 Skf & Dormer Tools Twist drill
JPS634211U (en) * 1986-06-23 1988-01-12
NL8821044A (en) * 1988-10-21 1990-10-01 Zubkov Alexei Vladimirovich SPIRAL DRILL.
EP2366478B1 (en) * 2001-07-10 2020-04-15 Mitsubishi Materials Corporation Drill
JP2006055965A (en) * 2004-08-23 2006-03-02 Osg Corp Cemented carbide drill causing low work hardening
JP5301647B2 (en) * 2009-02-20 2013-09-25 オーエスジー株式会社 Drill tap and internal thread processing method

Also Published As

Publication number Publication date
NL7505612A (en) 1975-11-19
DE2521938C3 (en) 1980-03-06
DE2521938A1 (en) 1975-11-27
IL47302A0 (en) 1975-07-28
IN144887B (en) 1978-07-22
CA1022775A (en) 1977-12-20
BR7503011A (en) 1976-04-20
DE2521938B2 (en) 1979-07-05
ZA753040B (en) 1976-04-28
GB1509912A (en) 1978-05-04
IE41050B1 (en) 1979-10-10
AU500271B2 (en) 1979-05-17
JPS50156790A (en) 1975-12-18
ES437919A1 (en) 1977-01-01
IL47302A (en) 1978-03-10
FR2270978A1 (en) 1975-12-12
IE41050L (en) 1975-11-17
SE7505581L (en) 1975-11-18
AU8125675A (en) 1976-11-25

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