GB550306A - Improvements relating to drills and to cutters therefor - Google Patents

Improvements relating to drills and to cutters therefor

Info

Publication number
GB550306A
GB550306A GB74142A GB74142A GB550306A GB 550306 A GB550306 A GB 550306A GB 74142 A GB74142 A GB 74142A GB 74142 A GB74142 A GB 74142A GB 550306 A GB550306 A GB 550306A
Authority
GB
United Kingdom
Prior art keywords
cutter
grooves
drills
class
iii
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
GB74142A
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.)
Alfred Herbert Ltd
Original Assignee
Alfred Herbert 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 Alfred Herbert Ltd filed Critical Alfred Herbert Ltd
Priority to GB74142A priority Critical patent/GB550306A/en
Publication of GB550306A publication Critical patent/GB550306A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/48—Chip breakers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/50—Drilling tools comprising cutting inserts

Landscapes

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

Abstract

550,306. Drills and cutters. HERBERT, Ltd., A., and LLOYD, A. H. Jan. 19, 1942, No. 741. [Class 83 (iii)) A drill, particularly of the kind described in Specification 20448/14, [Class 83 (iii)], comprises a detachable cutter 12 fitting in a diametrical slot in a straight fluted body 10, the cutter having straight grooves 22 formed along opposite faces from opposite sides the grooves sloping towards the cutter apex where they overlap in end view, at inclinations 23 to the cutter axis of about 18 degrees. The cutter has a cylindrical stem 15 located in the body. The end of the cutter has oppositely bevelled flat faces 18 to give front relief and a flat face 20 on each side to provide side relief. The grooves may be made by milling, planing or shaping.
GB74142A 1942-01-19 1942-01-19 Improvements relating to drills and to cutters therefor Expired GB550306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB74142A GB550306A (en) 1942-01-19 1942-01-19 Improvements relating to drills and to cutters therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB74142A GB550306A (en) 1942-01-19 1942-01-19 Improvements relating to drills and to cutters therefor

Publications (1)

Publication Number Publication Date
GB550306A true GB550306A (en) 1943-01-01

Family

ID=9709701

Family Applications (1)

Application Number Title Priority Date Filing Date
GB74142A Expired GB550306A (en) 1942-01-19 1942-01-19 Improvements relating to drills and to cutters therefor

Country Status (1)

Country Link
GB (1) GB550306A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3199381A (en) * 1963-03-04 1965-08-10 Bruce A Mackey Twist drill
FR2312323A1 (en) * 1975-05-26 1976-12-24 Krupp Gmbh DRILLING TOOL
DE2549147A1 (en) * 1975-11-03 1977-05-05 Itw Ateco Gmbh SCREW
FR2421022A1 (en) * 1978-03-31 1979-10-26 Centre Techn Ind Mecanique Blade for cutting round holes by enlargement - has two inclined lips with recessed cutting faces bounded by shoulders which curl chips
WO1984003241A1 (en) * 1983-02-23 1984-08-30 Iscar Hartmetall Drilling tool with interchangable cutting elements
US4586858A (en) * 1983-08-02 1986-05-06 Masao Kubota Rotary cutting tool
GB2201910A (en) * 1987-02-23 1988-09-14 Joseph Spencer Drilling bit
EP0972599A2 (en) * 1998-07-15 2000-01-19 Sandvik Aktiebolag Metal cutting drill with insert having radially overlapping cutting edges
US6565296B2 (en) 2001-03-28 2003-05-20 Allied Machine & Engineering Corp. Drill insert geometry having chip splitting groove
WO2005046913A3 (en) * 2003-11-07 2005-10-13 Allied Machine & Eng Corp Spade drill insert having helical margins
US7018145B2 (en) 2003-11-07 2006-03-28 Allied Machine & Engineering Corp. Spade drill insert having curved cutting edges
US7131799B2 (en) 2003-12-19 2006-11-07 Allied Machine & Engineering Corp. Cutting insert with helical geometry and holder therefor
FR2916150A1 (en) * 2007-05-16 2008-11-21 Safety Production Soc Par Acti TOOL HOLDER AND CENTRAL NOSE CUTTING PLATE
US7547166B2 (en) 2003-11-07 2009-06-16 Allied Machine & Engineering Corp. Spade drill insert having helical margins
US10532412B2 (en) 2016-09-23 2020-01-14 Milwaukee Electric Tool Corporation Hole saw arbor assembly
US10730119B2 (en) 2017-01-06 2020-08-04 Milwaukee Electric Tool Corporation Hole saw
USD965653S1 (en) 2017-08-15 2022-10-04 Milwaukee Electric Tool Corporation Hole saw

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3199381A (en) * 1963-03-04 1965-08-10 Bruce A Mackey Twist drill
FR2312323A1 (en) * 1975-05-26 1976-12-24 Krupp Gmbh DRILLING TOOL
DE2549147A1 (en) * 1975-11-03 1977-05-05 Itw Ateco Gmbh SCREW
FR2421022A1 (en) * 1978-03-31 1979-10-26 Centre Techn Ind Mecanique Blade for cutting round holes by enlargement - has two inclined lips with recessed cutting faces bounded by shoulders which curl chips
WO1984003241A1 (en) * 1983-02-23 1984-08-30 Iscar Hartmetall Drilling tool with interchangable cutting elements
EP0118806A1 (en) * 1983-02-23 1984-09-19 Helmut Faustka Drilling tool with replaceable cutting bit
US4586858A (en) * 1983-08-02 1986-05-06 Masao Kubota Rotary cutting tool
GB2201910A (en) * 1987-02-23 1988-09-14 Joseph Spencer Drilling bit
EP0972599A2 (en) * 1998-07-15 2000-01-19 Sandvik Aktiebolag Metal cutting drill with insert having radially overlapping cutting edges
EP0972599A3 (en) * 1998-07-15 2002-11-13 Sandvik Aktiebolag Metal cutting drill with insert having radially overlapping cutting edges
US6565296B2 (en) 2001-03-28 2003-05-20 Allied Machine & Engineering Corp. Drill insert geometry having chip splitting groove
EP1682294A2 (en) * 2003-11-07 2006-07-26 Allied Machine & Engineering Corp. Spade drill insert having helical margins
US7547166B2 (en) 2003-11-07 2009-06-16 Allied Machine & Engineering Corp. Spade drill insert having helical margins
US7018145B2 (en) 2003-11-07 2006-03-28 Allied Machine & Engineering Corp. Spade drill insert having curved cutting edges
WO2005046913A3 (en) * 2003-11-07 2005-10-13 Allied Machine & Eng Corp Spade drill insert having helical margins
US7241089B2 (en) 2003-11-07 2007-07-10 Allied Machine & Engineering Corp. Drill insert having curved cutting edges
EP1682294A4 (en) * 2003-11-07 2008-09-24 Allied Machine & Eng Corp Spade drill insert having helical margins
US7011478B2 (en) 2003-11-07 2006-03-14 Allied Machine & Engineering Corp. Spade drill insert having helical margins
US7131799B2 (en) 2003-12-19 2006-11-07 Allied Machine & Engineering Corp. Cutting insert with helical geometry and holder therefor
US8371778B2 (en) 2003-12-19 2013-02-12 Allied Machine & Engineering Corp. Cutting insert with helical geometry and holder therefor
US7950881B2 (en) 2003-12-19 2011-05-31 Allied Machine & Engineering Corp. Cutting insert with helical geometry and holder therefor
WO2008155484A3 (en) * 2007-05-16 2009-02-19 Safety Production Tool holder and cutting tip with centering snout
WO2008155484A2 (en) * 2007-05-16 2008-12-24 Safety Production Tool holder and cutting tip with centering snout
FR2916150A1 (en) * 2007-05-16 2008-11-21 Safety Production Soc Par Acti TOOL HOLDER AND CENTRAL NOSE CUTTING PLATE
US10532412B2 (en) 2016-09-23 2020-01-14 Milwaukee Electric Tool Corporation Hole saw arbor assembly
US11154940B2 (en) 2016-09-23 2021-10-26 Milwaukee Electric Tool Corporation Hole saw arbor assembly
US10730119B2 (en) 2017-01-06 2020-08-04 Milwaukee Electric Tool Corporation Hole saw
US11559840B2 (en) 2017-01-06 2023-01-24 Milwaukee Electric Tool Corporation Hole saw
USD965653S1 (en) 2017-08-15 2022-10-04 Milwaukee Electric Tool Corporation Hole saw
USD973733S1 (en) 2017-08-15 2022-12-27 Milwaukee Electric Tool Corporation Hole saw

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