JPH0454620U - - Google Patents

Info

Publication number
JPH0454620U
JPH0454620U JP9778690U JP9778690U JPH0454620U JP H0454620 U JPH0454620 U JP H0454620U JP 9778690 U JP9778690 U JP 9778690U JP 9778690 U JP9778690 U JP 9778690U JP H0454620 U JPH0454620 U JP H0454620U
Authority
JP
Japan
Prior art keywords
tip
drill
protrusion
vicinity
utility
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
JP9778690U
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 JP9778690U priority Critical patent/JPH0454620U/ja
Publication of JPH0454620U publication Critical patent/JPH0454620U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Drilling Tools (AREA)

Description

【図面の簡単な説明】
第1図aは本考案の実施例を説明するホルソー
の側面図、第1図bは−線切断した突起部の
拡大断面図、第2図はその正面図、第3図は従来
のホルソーの側面図、第4図はその正面図である
。 1……ドリル、2……カツタ、3……軸、4…
…歯、5……突起、C,C……コア。

Claims (1)

    【実用新案登録請求の範囲】
  1. ドリルの先端近傍に円筒状のカツタを取り付け
    たものにおいて、ドリル軸の先端とカツタ取り付
    け位置との間に突起を設けたことを特徴とするホ
    ルソー。
JP9778690U 1990-09-18 1990-09-18 Pending JPH0454620U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9778690U JPH0454620U (ja) 1990-09-18 1990-09-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9778690U JPH0454620U (ja) 1990-09-18 1990-09-18

Publications (1)

Publication Number Publication Date
JPH0454620U true JPH0454620U (ja) 1992-05-11

Family

ID=31838462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9778690U Pending JPH0454620U (ja) 1990-09-18 1990-09-18

Country Status (1)

Country Link
JP (1) JPH0454620U (ja)

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