Bosch SP515 Screw Pilot Bit Set, 1/4 in Shank, Hex Shank tools--07-20-26 16 in and 19

16 in and 19

Head Weight: 13 oz

sharp cutting edge

plaster and wood

55684 ("Titan") and 55686 ("Super Slim") welding helmets and most brand name helmets using a 5-1/4 in (133

Bosch SP515 Screw Pilot Bit Set, 1/4 in Shank, Hex Shank tools--07-20-26 16 in and 19Bosch hex shank screw pilot bits drill precise, clean pilot holes in wood, plastic and composite materials. Used for fast countersinking and counterboring in single operation, these pilot bits drill countersink pilot holes for flush screws. The drill bits are replaceable. The screw pilot bits provide adjustable countersink depth with an Allen wrench. The hex shanks are designed for reduced slippage and the shanks fit corded and cordless drills. Ideal