Professional tool for commercial or occasional use. Manufactured from chrome vanadium steel for strength and durability. 1/2″drive so will fit any 1/2″ drive sockets / extensions etc. 72 Tooth fine ratchet design so works in 5 degree increments for access into awkward areas Quick release button so the socket will easily come off but at the same time wont fall off when using this application Forward and reverse at the flick of a lever. Length extends from (12″-17″) Easy to extend simply pull back the lever and slide the bar up, locks in different places for different lengths required. Plastic grip handle for comfort and grip when using this application