5/16 x 4-1/2-In. Multi-Purpose Drill Bit Paint & Primers Scissor-like action of bladed wheels

Scissor-like action of bladed wheels = Breaks up soil with ease and cleans itself with each turn

making them an excellent choice for allergy sufferers

the strongest tooth form in the industry

engines and other metal items

5/16 x 4-1/2-In. Multi-Purpose Drill Bit Paint & Primers Scissor-like action of bladed wheels5 16" x 4 1 2" multi purpose drill bit, cobalt and tungsten carbide tip for maximum hardness and resistance to heat and wear, for rotary or percussion drilling, for use with masonry, concrete, brick, marble, granite, hardened steel, cast metal, fiberglass, plexiglass, ceramic tile, hard wood, soft wood and glass.