Breast drills

Details Breast drills Breast drills

1978-11-28

1980-12-23

Hinson, Harrison L.

Cutting by use of rotating axially moving tool

Means to drive tool

408241R, 408712, B23B 3910, B23B 3900

Patent

active

042407710

ABSTRACT:
A breast drill including a casing of elongate hollow form containing gearing for transmitting drive to a drill chuck, and a grip handle connected to the casing and capable of angular adjustment around the casing so that it can be located at a required position in relation to the position of a crank handle which can be turned to transmit drive to the chuck.

REFERENCES:
patent: 913172 (1909-02-01), Smith et al.
patent: 1251133 (1917-12-01), Thiemer
patent: 2474726 (1949-06-01), La Source

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