FR548585A - Protective drill holder - Google Patents

Protective drill holder

Info

Publication number
FR548585A
FR548585A FR548585DA FR548585A FR 548585 A FR548585 A FR 548585A FR 548585D A FR548585D A FR 548585DA FR 548585 A FR548585 A FR 548585A
Authority
FR
France
Prior art keywords
drill holder
protective drill
protective
holder
drill
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Paul Poulain
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
Application granted granted Critical
Publication of FR548585A publication Critical patent/FR548585A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/62—Drilling tools having means to reinforce the shank, e.g. drills having small shanks being gripped by devices having a larger shank

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR548585D 1918-02-25 1918-02-25 Protective drill holder Expired FR548585A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR548585T 1918-02-25

Publications (1)

Publication Number Publication Date
FR548585A true FR548585A (en) 1923-01-18

Family

ID=8934932

Family Applications (1)

Application Number Title Priority Date Filing Date
FR548585D Expired FR548585A (en) 1918-02-25 1918-02-25 Protective drill holder

Country Status (1)

Country Link
FR (1) FR548585A (en)

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