FR340393A - Improvements to drill bits for drilling tools - Google Patents

Improvements to drill bits for drilling tools

Info

Publication number
FR340393A
FR340393A FR340393DA FR340393A FR 340393 A FR340393 A FR 340393A FR 340393D A FR340393D A FR 340393DA FR 340393 A FR340393 A FR 340393A
Authority
FR
France
Prior art keywords
drill bits
drilling tools
drilling
tools
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
William Richard Down
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Application granted granted Critical
Publication of FR340393A publication Critical patent/FR340393A/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
    • B23B51/02—Twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/02—Connections between shanks and removable cutting heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/138—Screw threads
FR340393D 1904-02-12 1904-02-12 Improvements to drill bits for drilling tools Expired FR340393A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR340393T 1904-02-12

Publications (1)

Publication Number Publication Date
FR340393A true FR340393A (en) 1904-07-05

Family

ID=1389508

Family Applications (1)

Application Number Title Priority Date Filing Date
FR340393D Expired FR340393A (en) 1904-02-12 1904-02-12 Improvements to drill bits for drilling tools

Country Status (1)

Country Link
FR (1) FR340393A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011006804A3 (en) * 2009-07-16 2011-03-10 Hartmetall-Werkzeugfabrik Paul Horn Gmbh Two-part tool for machining, with screw coupling
CN104028789A (en) * 2013-04-07 2014-09-10 厦门钨业股份有限公司 Bit-replaceable precise rod-shaped tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011006804A3 (en) * 2009-07-16 2011-03-10 Hartmetall-Werkzeugfabrik Paul Horn Gmbh Two-part tool for machining, with screw coupling
CN104028789A (en) * 2013-04-07 2014-09-10 厦门钨业股份有限公司 Bit-replaceable precise rod-shaped tool

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