Bosch T4047L Screwdriver Bit Set, 47-Piece, Steel

Use for almost all driving and fastening applications. Bits are extra hard and designed to withstand the high-torque associated with today's more powerful impact drivers. Forged tips create a stronger and more flexible torsion zone reducing breakage and extending bit life. Made of highest quality steel for durability. Proven sub-zero tempering process gives bit long life.