Kennametal Inc.

Curnie A Dunn

Ted Richard Massa

Douglas Edward Bise

Gary John Condon

Phillip W Haga

Stephen T Belsheim

James E Rutherford

A rotary drill bit for penetrating earth strata wherein the drill bit includes a drill bit body that has an axial forward end. The drill bit body has a hard insert, which is preferably monolithic, that is affixed to the drill bit body at the axial forward end thereof. The hard insert presents at least three discrete leading cutting edges for cutting the earth strata.

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Bristol, VA, United States of America

Curnie A Dunn