"Bosch Impact Tough" impact driver bits have been upgraded to deliver 10 times 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 ejection risk. 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. The set contains: Insert bits: (2) P1, (5) P2, (3) P3, (1) P2R, (1) R1, (3) R2, (1) R3, (1) T15, (2) T20, (2) T25, (1) T30; 2" power bits: (3) P2, (1) P3, (2) R2, (2) T25; 3.5" power bit (1) P2 and 1 magnetic nut setter 1/4".