The Kincrome 31 Piece 1/2" Drive Metric & Imperial Socket Set is loaded with a number of mirror polish sockets, accessories and a 1/2" ratchet. Kincrome’s Mirror Polish range of sockets are manufactured from 50bv30 Chrome Vanadium Steel (Cr-V) and feature a Mirror Polish finish, colour coded metric and imperial rings for easy identification and Peripheral Drive technology. Peripheral Drive provides greater torque by relocating the load to the flat sides of a fastener, this allows for greater surface area contact and prevents “rounding off” of fasteners.