1/8" Hex Adaptor
The No. 225 1/8" adaptor adapts our No. 223 1/8" Solid Carbide Drill Bits to work in a standard electric drill chuck. The shank diameter on the adaptor is 1/4 inch. An internal collet tightens down on the drill bit to hold it in the adaptor. Made from steel, heat treated for wear resistance, and zinc plated. Net weight: 2 oz.