JPS6222725B2 - - Google Patents

Info

Publication number
JPS6222725B2
JPS6222725B2 JP1108779A JP1108779A JPS6222725B2 JP S6222725 B2 JPS6222725 B2 JP S6222725B2 JP 1108779 A JP1108779 A JP 1108779A JP 1108779 A JP1108779 A JP 1108779A JP S6222725 B2 JPS6222725 B2 JP S6222725B2
Authority
JP
Japan
Prior art keywords
chips
cutting edge
cutting
drill
blade
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
JP1108779A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55106709A (en
Inventor
Toshiaki Hosoi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP1108779A priority Critical patent/JPS55106709A/ja
Publication of JPS55106709A publication Critical patent/JPS55106709A/ja
Publication of JPS6222725B2 publication Critical patent/JPS6222725B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Drilling Tools (AREA)
JP1108779A 1979-02-01 1979-02-01 Drill Granted JPS55106709A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1108779A JPS55106709A (en) 1979-02-01 1979-02-01 Drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1108779A JPS55106709A (en) 1979-02-01 1979-02-01 Drill

Publications (2)

Publication Number Publication Date
JPS55106709A JPS55106709A (en) 1980-08-15
JPS6222725B2 true JPS6222725B2 (ko) 1987-05-19

Family

ID=11768192

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1108779A Granted JPS55106709A (en) 1979-02-01 1979-02-01 Drill

Country Status (1)

Country Link
JP (1) JPS55106709A (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4984944A (en) * 1987-02-09 1991-01-15 Vermont American Corporation Drill bit blade for masonry and rock drill
US5230593A (en) * 1987-12-14 1993-07-27 Mitsubishi Kinzoku Kabushiki Kaisha Twist drill
DE3853518T3 (de) * 1987-12-14 2004-06-03 Mitsubishi Materials Corp. Spiralbohrer.
US8061938B2 (en) * 2008-03-10 2011-11-22 Kennametal Inc. Cutting tool with chisel edge

Also Published As

Publication number Publication date
JPS55106709A (en) 1980-08-15

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