JPH0235612U - - Google Patents

Info

Publication number
JPH0235612U
JPH0235612U JP11388988U JP11388988U JPH0235612U JP H0235612 U JPH0235612 U JP H0235612U JP 11388988 U JP11388988 U JP 11388988U JP 11388988 U JP11388988 U JP 11388988U JP H0235612 U JPH0235612 U JP H0235612U
Authority
JP
Japan
Prior art keywords
mounting plate
hole
diameter
center drill
hole saw
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
JP11388988U
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 JP11388988U priority Critical patent/JPH0235612U/ja
Publication of JPH0235612U publication Critical patent/JPH0235612U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Drilling And Boring (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例に係る孔径拡大工事
用治具の断面図である。 1……ホルソー、2……センタードリル、3…
…取付板、4……孔、5……案内筒、6……固定
具。

Claims (1)

    【実用新案登録請求の範囲】
  1. ホルソーのセンタードリルに外嵌される取付板
    と、この取付板にセンタードリルと同心状に連設
    され、既成の孔の孔径とほぼ同じ外径を有する円
    筒形の案内筒と、センタードリルに外嵌された取
    付板をホルソーに固定する固定具とで構成される
    ことを特徴とする孔径拡大工事用治具。
JP11388988U 1988-08-29 1988-08-29 Pending JPH0235612U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11388988U JPH0235612U (ja) 1988-08-29 1988-08-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11388988U JPH0235612U (ja) 1988-08-29 1988-08-29

Publications (1)

Publication Number Publication Date
JPH0235612U true JPH0235612U (ja) 1990-03-07

Family

ID=31354137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11388988U Pending JPH0235612U (ja) 1988-08-29 1988-08-29

Country Status (1)

Country Link
JP (1) JPH0235612U (ja)

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