Indexable insert for mining drill

Details Indexable insert for mining drill Indexable insert for mining drill

1983-05-27

1985-07-09

Leppink, James A.

Cutters, for shaping

Including tool having plural alternatively usable cutting edges

175383, 175410, 408188, 408713, E21B 1062, B23B 2716

Patent

active

045279314

ABSTRACT:
A removable and indexable insert includes forwardly and rearwardly projecting faces forming cutting edges with side surfaces and concave end surfaces forming side cutting edges.

REFERENCES:
patent: 2276771 (1942-03-01), Hawker
patent: 2641479 (1953-06-01), Gabriele
patent: 3490117 (1970-01-01), Hertel
patent: 3715168 (1973-02-01), Kuhn
patent: 3878905 (1975-04-01), Schaumann
patent: 3966350 (1976-06-01), Benjamin
patent: 4115024 (1978-09-01), Sussmuth
patent: 4355932 (1982-10-01), Koppelmann

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