Mining cutter bit assembly

摘要

A cutter bit assembly for use on, for example, a mining machine and having improved structure to ensure proper locking of a cutter bit in a cutter bit holder and to ensure proper seating of the bit holder in the supporting block therefor. The bearing surfaces between the bit holder and the block are formed so as to ensure full contact between the upper body portion of the bit holder and the block when a shank portion of the holder is secured within the block. The bearing surfaces on the body portion of the holder are angled so as to further ensure proper seating thereof.