ZA90326B - Drill bit - Google Patents

Drill bit

Info

Publication number
ZA90326B
ZA90326B ZA90326A ZA90326A ZA90326B ZA 90326 B ZA90326 B ZA 90326B ZA 90326 A ZA90326 A ZA 90326A ZA 90326 A ZA90326 A ZA 90326A ZA 90326 B ZA90326 B ZA 90326B
Authority
ZA
South Africa
Prior art keywords
drill bit
drill
bit
Prior art date
Application number
ZA90326A
Inventor
Artur Fischer
Fischer Artur
Willi Haug
Haug Willi
Original Assignee
Fischer Artur Werke Gmbh
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 Fischer Artur Werke Gmbh filed Critical Fischer Artur Werke Gmbh
Publication of ZA90326B publication Critical patent/ZA90326B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/0018—Drills for enlarging a hole
    • B23B51/0027—Drills for enlarging a hole by tool swivelling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
    • B23B49/003—Stops attached to drilling tools, tool holders or drilling machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
    • B23B49/003—Stops attached to drilling tools, tool holders or drilling machines
    • B23B49/005—Attached to the drill

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
ZA90326A 1989-02-27 1990-01-17 Drill bit ZA90326B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3906036A DE3906036A1 (en) 1989-02-27 1989-02-27 Drill for making drilled holes with an undercut

Publications (1)

Publication Number Publication Date
ZA90326B true ZA90326B (en) 1990-10-31

Family

ID=6375011

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA90326A ZA90326B (en) 1989-02-27 1990-01-17 Drill bit

Country Status (3)

Country Link
DD (1) DD292175A5 (en)
DE (1) DE3906036A1 (en)
ZA (1) ZA90326B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4101678A1 (en) * 1991-01-22 1992-07-23 Manfred Rosenkranz Combined boring and centering tool - has one-piece shaft and flange whose shoulders act as frictional faces against chuck face and prevent tool slippage
DE4125577A1 (en) * 1991-08-02 1993-02-04 Fischer Artur Werke Gmbh Wall anchor bolt hole and drilling tool - with drilling tool producing space near bottom of hole larger than drill for anchoring
DE4132228A1 (en) * 1991-09-27 1993-04-01 Fischer Artur Werke Gmbh DRILLING DEVICE FOR PRODUCING DRILL HOLES WITH UNDERCUT
DE19610478A1 (en) * 1996-03-16 1997-09-18 Fischer Artur Werke Gmbh Undercut drill for use in reinforced concrete structures

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8221158U1 (en) * 1982-07-24 1983-02-03 Westa Werkzeugbau Gmbh, 8130 Starnberg DRILLING TOOL FOR PRODUCING DRILL HOLES WITH AT LEAST ONE EXTENSION AT THE DRILL BASE
DE8515960U1 (en) * 1985-05-31 1985-07-25 Hawera Probst Gmbh + Co, 7980 Ravensburg Drilling tool with depth stop

Also Published As

Publication number Publication date
DE3906036A1 (en) 1990-08-30
DD292175A5 (en) 1991-07-25

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