JPS52116980A - Tip breaker drill and method of manufacturing same - Google Patents

Tip breaker drill and method of manufacturing same

Info

Publication number
JPS52116980A
JPS52116980A JP3314476A JP3314476A JPS52116980A JP S52116980 A JPS52116980 A JP S52116980A JP 3314476 A JP3314476 A JP 3314476A JP 3314476 A JP3314476 A JP 3314476A JP S52116980 A JPS52116980 A JP S52116980A
Authority
JP
Japan
Prior art keywords
manufacturing same
tip breaker
breaker drill
drill
tip
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.)
Granted
Application number
JP3314476A
Other languages
English (en)
Other versions
JPS542711B2 (ja
Inventor
Naohiko Satou
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.)
RIKEN STEEL KK
Original Assignee
RIKEN STEEL KK
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 RIKEN STEEL KK filed Critical RIKEN STEEL KK
Priority to JP3314476A priority Critical patent/JPS52116980A/ja
Publication of JPS52116980A publication Critical patent/JPS52116980A/ja
Publication of JPS542711B2 publication Critical patent/JPS542711B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/44—Margins, i.e. the narrow portion of the land which is not cut away to provide clearance on the circumferential surface
    • B23B2251/443—Double margin drills

Landscapes

  • Drilling Tools (AREA)
JP3314476A 1976-03-26 1976-03-26 Tip breaker drill and method of manufacturing same Granted JPS52116980A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3314476A JPS52116980A (en) 1976-03-26 1976-03-26 Tip breaker drill and method of manufacturing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3314476A JPS52116980A (en) 1976-03-26 1976-03-26 Tip breaker drill and method of manufacturing same

Publications (2)

Publication Number Publication Date
JPS52116980A true JPS52116980A (en) 1977-09-30
JPS542711B2 JPS542711B2 (ja) 1979-02-10

Family

ID=12378383

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3314476A Granted JPS52116980A (en) 1976-03-26 1976-03-26 Tip breaker drill and method of manufacturing same

Country Status (1)

Country Link
JP (1) JPS52116980A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001300934A (ja) * 2000-03-27 2001-10-30 Hilti Ag 螺旋ドリル

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016101664A (ja) * 2014-11-27 2016-06-02 三星ダイヤモンド工業株式会社 基板加工用ツールの製造方法及び基板加工用ツール

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667857A (en) * 1970-10-30 1972-06-06 Nat Twist Drill & Tool Co Combined drill and reamer construction

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667857A (en) * 1970-10-30 1972-06-06 Nat Twist Drill & Tool Co Combined drill and reamer construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001300934A (ja) * 2000-03-27 2001-10-30 Hilti Ag 螺旋ドリル

Also Published As

Publication number Publication date
JPS542711B2 (ja) 1979-02-10

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