JPH0259904U - - Google Patents

Info

Publication number
JPH0259904U
JPH0259904U JP13907688U JP13907688U JPH0259904U JP H0259904 U JPH0259904 U JP H0259904U JP 13907688 U JP13907688 U JP 13907688U JP 13907688 U JP13907688 U JP 13907688U JP H0259904 U JPH0259904 U JP H0259904U
Authority
JP
Japan
Prior art keywords
diamond
internal space
diamond drill
core
destroying
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
JP13907688U
Other languages
English (en)
Other versions
JPH0625307Y2 (ja
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 JP13907688U priority Critical patent/JPH0625307Y2/ja
Publication of JPH0259904U publication Critical patent/JPH0259904U/ja
Application granted granted Critical
Publication of JPH0625307Y2 publication Critical patent/JPH0625307Y2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【図面の簡単な説明】
第１図〜第４図は本考案の実施例を示す。第１
図は全体構成を示し、第２図はクラウン部の全体
斜視図を示し、第３図および第４図はクラウン部
の断面形状を示す。第５図および第６図は従来の
ドリルの構造とその作業態様を示す。 １：ダイヤモンドクラウン部、２：ステム基部
、３：ダイヤモンド砥粒、４：ボンド材、５：開
放空間、６：コア除去部分、７：テーパ面。

Claims (1)

    【実用新案登録請求の範囲】
  1. ５〜２５mmφのダイヤモンドドリルにおいて、
    ダイヤモンドクラウン部を水平断面において少な
    くとも一方が開放された内部空間部を有する一体
    成形体とし、同内部空間部にコアを破壊するため
    の斜面を設けたことを特徴とするダイヤモンドド
    リル。
JP13907688U 1988-10-24 1988-10-24 ダイヤモンドドリル Expired - Fee Related JPH0625307Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13907688U JPH0625307Y2 (ja) 1988-10-24 1988-10-24 ダイヤモンドドリル

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13907688U JPH0625307Y2 (ja) 1988-10-24 1988-10-24 ダイヤモンドドリル

Publications (2)

Publication Number Publication Date
JPH0259904U true JPH0259904U (ja) 1990-05-01
JPH0625307Y2 JPH0625307Y2 (ja) 1994-07-06

Family

ID=31401998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13907688U Expired - Fee Related JPH0625307Y2 (ja) 1988-10-24 1988-10-24 ダイヤモンドドリル

Country Status (1)

Country Link
JP (1) JPH0625307Y2 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06344213A (ja) * 1993-06-08 1994-12-20 Shimomura Seisakusho:Kk 難加工材用ドリル及び該ドリルを使用した穴あけ方法
JP2008037058A (ja) * 2006-08-10 2008-02-21 Max Co Ltd ノンコアドリルビット

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4693479B2 (ja) * 2005-04-28 2011-06-01 セントラル硝子株式会社 ガラス基板の孔あけドリル

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06344213A (ja) * 1993-06-08 1994-12-20 Shimomura Seisakusho:Kk 難加工材用ドリル及び該ドリルを使用した穴あけ方法
JP2008037058A (ja) * 2006-08-10 2008-02-21 Max Co Ltd ノンコアドリルビット

Also Published As

Publication number Publication date
JPH0625307Y2 (ja) 1994-07-06

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees