JPS62161916U - - Google Patents

Info

Publication number
JPS62161916U
JPS62161916U JP5192786U JP5192786U JPS62161916U JP S62161916 U JPS62161916 U JP S62161916U JP 5192786 U JP5192786 U JP 5192786U JP 5192786 U JP5192786 U JP 5192786U JP S62161916 U JPS62161916 U JP S62161916U
Authority
JP
Japan
Prior art keywords
core thickness
drill
tip
head
cemented carbide
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.)
Pending
Application number
JP5192786U
Other languages
English (en)
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 filed Critical
Priority to JP5192786U priority Critical patent/JPS62161916U/ja
Publication of JPS62161916U publication Critical patent/JPS62161916U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図はこの考案の実施例を示す縦断面図、第
2図は同上の―の横断面図、第3図は同上の
―の横断面図である。 1…ドリル本体、2…超硬合金ヘツド、3…接
合部、4…芯厚、5…芯厚。

Claims (1)

    【実用新案登録請求の範囲】
  1. ドリル本体の先端部に超硬合金ヘツドを接合し
    、そのヘツド先端に切刃を形成したドリルにおい
    て、前記超硬合金ヘツド先端側の芯厚を、その他
    の部分の芯厚に比べて小とし、かつ後端側の芯厚
    を前記ドリル本体の芯厚に等しくしたことを特徴
    とするドリル。
JP5192786U 1986-04-04 1986-04-04 Pending JPS62161916U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5192786U JPS62161916U (ja) 1986-04-04 1986-04-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5192786U JPS62161916U (ja) 1986-04-04 1986-04-04

Publications (1)

Publication Number Publication Date
JPS62161916U true JPS62161916U (ja) 1987-10-15

Family

ID=30876638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5192786U Pending JPS62161916U (ja) 1986-04-04 1986-04-04

Country Status (1)

Country Link
JP (1) JPS62161916U (ja)

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