JPS6160235B2 - - Google Patents

Info

Publication number
JPS6160235B2
JPS6160235B2 JP17062883A JP17062883A JPS6160235B2 JP S6160235 B2 JPS6160235 B2 JP S6160235B2 JP 17062883 A JP17062883 A JP 17062883A JP 17062883 A JP17062883 A JP 17062883A JP S6160235 B2 JPS6160235 B2 JP S6160235B2
Authority
JP
Japan
Prior art keywords
insert
cutting edge
bit
inserts
cutter bit
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
JP17062883A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5972397A (ja
Inventor
Jii Matsukenna Aretsukusu
Jii Hatsutsueru Kuraido
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.)
Kennametal Inc
Original Assignee
Kennametal Inc
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 Kennametal Inc filed Critical Kennametal Inc
Publication of JPS5972397A publication Critical patent/JPS5972397A/ja
Publication of JPS6160235B2 publication Critical patent/JPS6160235B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
JP17062883A 1982-09-17 1983-09-17 多重インサ−トカツタビツト Granted JPS5972397A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US42431182A 1982-09-17 1982-09-17
US424311 1982-09-17
US524350 1983-08-18

Publications (2)

Publication Number Publication Date
JPS5972397A JPS5972397A (ja) 1984-04-24
JPS6160235B2 true JPS6160235B2 (xx) 1986-12-19

Family

ID=23682180

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17062883A Granted JPS5972397A (ja) 1982-09-17 1983-09-17 多重インサ−トカツタビツト

Country Status (5)

Country Link
JP (1) JPS5972397A (xx)
CA (1) CA1242463A (xx)
IN (1) IN160174B (xx)
MX (1) MX157916A (xx)
ZA (1) ZA836826B (xx)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8418481D0 (en) * 1984-07-19 1984-08-22 Nl Petroleum Prod Rotary drill bits
JPH01164386U (xx) * 1988-05-10 1989-11-16
JPH02125008U (xx) * 1989-03-22 1990-10-15
JPH0750473Y2 (ja) * 1990-08-22 1995-11-15 東芝タンガロイ株式会社 コニカルビット
JP4622117B2 (ja) * 2001-02-20 2011-02-02 株式会社タンガロイ シールド掘削機用ビット

Also Published As

Publication number Publication date
IN160174B (xx) 1987-06-27
CA1242463A (en) 1988-09-27
JPS5972397A (ja) 1984-04-24
ZA836826B (en) 1984-10-31
MX157916A (es) 1988-12-19

Similar Documents

Publication Publication Date Title
US4674802A (en) Multi-insert cutter bit
US4678237A (en) Cutter inserts for picks
CA2505828C (en) Modified cutters
US5979577A (en) Stabilizing drill bit with improved cutting elements
US6296069B1 (en) Bladed drill bit with centrally distributed diamond cutters
US6408958B1 (en) Superabrasive cutting assemblies including cutters of varying orientations and drill bits so equipped
US7475949B2 (en) Edge cutter assembly for use with a rotatable drum
US5078219A (en) Concave drag bit cutter device and method
USRE45748E1 (en) Modified cutters and a method of drilling with modified cutters
EP0164297B1 (en) Diamond drill bit with varied cutting elements
US5161627A (en) Attack tool insert with polycrystalline diamond layer
US8454096B2 (en) High-impact resistant tool
CA1194857A (en) Rotary drilling bits
US6068072A (en) Cutting element
US20040065484A1 (en) Diamond tip point-attack bit
US20040026983A1 (en) Monolithic point-attack bit
US5467837A (en) Rotary drill bit having an insert with leading and trailing relief portions
US9458607B2 (en) Rotatable cutting tool with head portion having elongated projections
PL171784B1 (pl) Koronka wiertnicza PL
GB2088443A (en) Drill bit
US5505273A (en) Compound diamond cutter
EP0291314A2 (en) Cutting structure and rotary drill bit comprising such a structure
US5092310A (en) Mining pick
JPS6160235B2 (xx)
US5335977A (en) Double acting bit holder