Tool bit and tool bit chuck for hand tools

Details Tool bit and tool bit chuck for hand tools Tool bit and tool bit chuck for hand tools

1994-03-04

1995-06-27

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Tool or tool with support

Including detailed shank

279 193, 408240, B23B 5102, B23B 3102

Patent

active

054274818

ABSTRACT:
A tool bit to be inserted into a tool bit chuck of a hand tool used for chiseling, drilling and/or percussion drilling has an axially extending chucking shank (A) with two locking grooves (1) closed at the ends spaced apart in the axial direction, and two rotary entrainment grooves (2) open at a free end of the shank. In addition, two rotary entrainment faces (3) are located in the areas of the locking grooves (1).

REFERENCES:
patent: 2393424 (1946-01-01), Selch
patent: 4107949 (1978-08-01), Wanner et al.
patent: 5174698 (1992-12-01), Obermeier
patent: 5286145 (1994-02-01), Kleine
patent: 5324145 (1994-06-01), Kleine

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