Description

Percussion Masonry Drill Bit, 1/4 x 4-In.

Master mechanic, 1/4″ x 4″, rotary percussion, masonry drill bit, black oxide, carbide tipped, designed for use in drills with rotary or hammer mode, recommended for drilling cinder block, common & hard brick, plaster, ceramic tile, glazed tile & wet or dry concrete & for moderate use in marble, granite & concrete over 6000 psi.