Experience a new standard in bits, with all the features professionals have been missing: extra reach, precise fit, high durability, and an efficient color-coding system, all combined in one bit.This set includes:T20 x 3T25 x 4T30 x 3Carabiner holder x 1Features and benefits:• Color-coding system:One unique color per bit type. Save time by finding the right bit on the first try.• Extra reach:60mm length provides better reach than traditional 50mm impact bits.• 2X longer life:Most bit suppliers use standard S2 steel, but our steel delivers double the lifetime. (See the chart in the image gallery for test results).• Improved fit:Designed with a tighter fit in the screw, reducing the risk of screws falling off and providing more efficient driving.• Built for impact drivers:Engineered to withstand the tough loads from impact drivers without breaking.• Compatibility:Impact drivers and standard drill drivers.