B - Operations – Transporting – 27 – G
Patent
B - Operations, Transporting
27
G
77/36
B27G 15/00 (2006.01) B23B 51/00 (2006.01)
Patent
CA 1257113
ABSTRACT OF THE DISCLOSURE Drill for making bores through which flexible shafts, cables and the like can be inserted has a bore crown and a shank. The bore crown has main cutting edges for forward drilling, side cutting edges for radial drilling, and end cutting edges for rearward drilling. The shank has a significantly smaller thickness than the area drilled by the main cutting edges.
488080
G. Ronald Bell & Associates
Jansson Lars O.
LandOfFree
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