Bosch Impact Tough Impact Driver Bits have been upgraded to deliver 10X life over standard impact bits. With an Xtended Torsion Zone, precision engineering and heat-treated manufacturing process, these bits deliver tough torque and power for longer and with less cam out. These Impact Tough bits are an impact-rated line of screw driving bits, double-ended bits, nut setters, sockets and bit holders that have been enhanced to handle a new generation of higher torque impact drivers. These bits also come with high-visibility sleeves for greater user convenience. 10X life over standard impact bits Xtended Torsion Zone helps to absorb high-torque of new impact drivers Precision-engineered tips for a tighter fit and less cam out Heat-treated manufacturing for stronger bit High-visibility sleeve with laser-etched markings for user convenience Hardness: Impact Tough Overall Length: 1.0 Pieces: 2.0 Point: R2 Shank: 1/4"