B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
77/15
B23B 45/00 (2006.01) B25H 1/00 (2006.01)
Patent
CA 1126542
ABSTRACT The invention is a hand-held tool for quickly and accurately drilling vertical or horizontal holes into materials. It comprises a portable hand-held power drill, a drill bit, and a sensor for continuously indicating during operation of the drill the amount of deviation of the drill bit from a vertical or horizontal position.
382801
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