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GB1378869A - Countersinker assembly - Google Patents

Countersinker assembly

Info

Publication number
GB1378869A
GB1378869A GB5987271A GB5987271A GB1378869A GB 1378869 A GB1378869 A GB 1378869A GB 5987271 A GB5987271 A GB 5987271A GB 5987271 A GB5987271 A GB 5987271A GB 1378869 A GB1378869 A GB 1378869A
Authority
GB
United Kingdom
Prior art keywords
holding device
drill
countersinker
assembly
dec
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
GB5987271A
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.)
SKNUTSSON A
Original Assignee
SKNUTSSON A
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 SKNUTSSON A filed Critical SKNUTSSON A
Publication of GB1378869A publication Critical patent/GB1378869A/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
    • B23B51/10—Bits for countersinking
    • B23B51/108—Bits for countersinking having a centering drill

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

1378869 Countersinkers A KNUTSSON 23 Dec 1971 [29 Dec 1970] 59872/71 Heading B3C A countersinker assembly for attachment to a spiral fluted drill comprises a holding device 3 having an axial bore to accommodate the drill 1 and which is divided longitudinally into two halves, the ends of the holding device being conically formed, a countersinker 4 having cutting edges 6 and an internal conical surface to fit one end of the holding device 3, and a collar 2 internally conically formed to fit on the other end of the holding device, the countersinker 4 and the collar 2 having co-operating screw-threads enabling them to be screwed together to urge the holding device into gripping engagement with the drill. The holding device halves include swarf excluding elements 5 which are flexible to allow riding out of the drill flutes when relative rotation occurs through slipping between the countersinker assembly and the drill. The cutting edges 6 include an edge 10 extending into the drill flutes to prevent relative slip.
GB5987271A 1970-12-29 1971-12-23 Countersinker assembly Expired GB1378869A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1764370 1970-12-29

Publications (1)

Publication Number Publication Date
GB1378869A true GB1378869A (en) 1974-12-27

Family

ID=20303822

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5987271A Expired GB1378869A (en) 1970-12-29 1971-12-23 Countersinker assembly

Country Status (2)

Country Link
DE (1) DE2161316A1 (en)
GB (1) GB1378869A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123322A (en) * 1981-02-04 1984-02-01 Fredrick Thomas Stephenson Drill bits with countersinking means
US5071295A (en) * 1989-04-07 1991-12-10 Sandvik Limited Cutters
US7090447B2 (en) * 2001-01-13 2006-08-15 Kennametal Inc. Twist drill for drilling with a countersink cutting arrangement, and a cutting tool with a countersink cutting arrangement, and a cutting-chamfering tool
US20120251257A1 (en) * 2011-03-31 2012-10-04 Abbott-Interfast Corporation Fascia counter-bore bit and fascia screw
US11407042B2 (en) 2019-01-07 2022-08-09 Omg, Inc. Counterbore tool and setting tool for fascia system and installation method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE430041B (en) * 1978-04-26 1983-10-17 Ake Knutsson FORS KARE

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123322A (en) * 1981-02-04 1984-02-01 Fredrick Thomas Stephenson Drill bits with countersinking means
US5071295A (en) * 1989-04-07 1991-12-10 Sandvik Limited Cutters
US7090447B2 (en) * 2001-01-13 2006-08-15 Kennametal Inc. Twist drill for drilling with a countersink cutting arrangement, and a cutting tool with a countersink cutting arrangement, and a cutting-chamfering tool
US20120251257A1 (en) * 2011-03-31 2012-10-04 Abbott-Interfast Corporation Fascia counter-bore bit and fascia screw
US8714887B2 (en) * 2011-03-31 2014-05-06 Abbott-Interfast Corporation Fascia counter-bore bit and fascia screw
US11407042B2 (en) 2019-01-07 2022-08-09 Omg, Inc. Counterbore tool and setting tool for fascia system and installation method

Also Published As

Publication number Publication date
DE2161316A1 (en) 1972-08-03

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Legal Events

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