BOSCH BL4151 3/8" Dia. Jobber Length Drill Bit HSS Black Oxide

Bosch bl4151 drill bits ( bulk)-jobber length, 3/8"dia, blk oxide features speed helix design for three times faster drilling than standard bits last 50 longer than high-speed steel easier drilling, reduced heat and extended drill bit life available in jobber length, stubby length, extended length (aircraft), 1/2 in. reduced shank (silver and deming) for use in steel, copper, aluminum, brass, oak, maple, mdf, pine, pvc, polycarbonate, acrylic, abs, nylon and composite materials.