Kincrome Deep Impact Socket Set 14pc 1/2" Drive Metric K28206Kincrome's range of impact sockets are manufactured from Chrome Molybdenum (Cr Mo) and feature a black phosphate finish for superior corrosion protection, laser etching for easy drive size identification and Peripheral Drive technology. Peripheral Drive provides greater torque by relocation the load to the flat sides of a fastener, this allows for greater surface area contact and prevents "rounding off" of fasteners. Contents 14 x 1 2" Drive Deep