JPS5835368Y2 - コアドリル - Google Patents

コアドリル

Info

Publication number
JPS5835368Y2
JPS5835368Y2 JP1979019398U JP1939879U JPS5835368Y2 JP S5835368 Y2 JPS5835368 Y2 JP S5835368Y2 JP 1979019398 U JP1979019398 U JP 1979019398U JP 1939879 U JP1939879 U JP 1939879U JP S5835368 Y2 JPS5835368 Y2 JP S5835368Y2
Authority
JP
Japan
Prior art keywords
core drill
cutting edge
weld
cylindrical
force
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
JP1979019398U
Other languages
English (en)
Japanese (ja)
Other versions
JPS55120413U (cs
Inventor
昌明 宮沢
Original Assignee
宮永 昌明
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 宮永 昌明 filed Critical 宮永 昌明
Priority to JP1979019398U priority Critical patent/JPS5835368Y2/ja
Publication of JPS55120413U publication Critical patent/JPS55120413U/ja
Application granted granted Critical
Publication of JPS5835368Y2 publication Critical patent/JPS5835368Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Drilling Tools (AREA)
JP1979019398U 1979-02-16 1979-02-16 コアドリル Expired JPS5835368Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1979019398U JPS5835368Y2 (ja) 1979-02-16 1979-02-16 コアドリル

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1979019398U JPS5835368Y2 (ja) 1979-02-16 1979-02-16 コアドリル

Publications (2)

Publication Number Publication Date
JPS55120413U JPS55120413U (cs) 1980-08-26
JPS5835368Y2 true JPS5835368Y2 (ja) 1983-08-09

Family

ID=28848419

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1979019398U Expired JPS5835368Y2 (ja) 1979-02-16 1979-02-16 コアドリル

Country Status (1)

Country Link
JP (1) JPS5835368Y2 (cs)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008178961A (ja) * 2007-01-26 2008-08-07 Ting Fong Electric & Machinery Co Ltd ドリル刃の製造方法とその構造
EP4015120A1 (de) * 2020-12-15 2022-06-22 Hilti Aktiengesellschaft Verfahren zum austauschen der bohrsegmente einer bohrkrone und schneidabschnitt für eine bohrkrone

Also Published As

Publication number Publication date
JPS55120413U (cs) 1980-08-26

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