JPH0352104U - - Google Patents

Info

Publication number
JPH0352104U
JPH0352104U JP11258889U JP11258889U JPH0352104U JP H0352104 U JPH0352104 U JP H0352104U JP 11258889 U JP11258889 U JP 11258889U JP 11258889 U JP11258889 U JP 11258889U JP H0352104 U JPH0352104 U JP H0352104U
Authority
JP
Japan
Prior art keywords
groove
depth
circumferential wall
spiral
carved
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
JP11258889U
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 JP11258889U priority Critical patent/JPH0352104U/ja
Publication of JPH0352104U publication Critical patent/JPH0352104U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例を示す底面斜視図、
第2図は同上の平面斜視図、第3図は本考案のス
トツパーを錐体に取着した状態を示す縦断面図で
ある。 1……ストツパー、5……内周壁、6……螺旋
状凹溝、7……周壁、8……貫通孔、81……垂
直壁。

Claims (1)

    【実用新案登録請求の範囲】
  1. 短円筒形体の周壁の一部に螺旋状の切り粉排出
    用の貫通溝が穿設され、貫通溝の上端部に垂直壁
    に設けられてなるストツパーに於いて、錐体外周
    壁に刻設された螺旋状凹溝と略同幅同ピツチで、
    該凹溝の深さの10〜100%の深さを有する螺
    旋状凹溝が上記垂直壁が設けられた部位から上方
    に於いて短円筒形体の内周壁に刻設されてなるこ
    とを特徴とする錐の穿孔深さ調節用ストツパー。
JP11258889U 1989-09-26 1989-09-26 Pending JPH0352104U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11258889U JPH0352104U (ja) 1989-09-26 1989-09-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11258889U JPH0352104U (ja) 1989-09-26 1989-09-26

Publications (1)

Publication Number Publication Date
JPH0352104U true JPH0352104U (ja) 1991-05-21

Family

ID=31661032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11258889U Pending JPH0352104U (ja) 1989-09-26 1989-09-26

Country Status (1)

Country Link
JP (1) JPH0352104U (ja)

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