1.Phosphate treated black oxide finish hole in socket for loacking into drive tang
heavy duty vanadium construction drop forged hardened and tempered
2.1"Dr,deep impact sockets 21mm,22mm,24mm,27mm,33mm,36mm,38mm,41mm
3.Specially designed for use with air tools complete with new style storage case
4.Made from CR-MO steel
5.78mm/80mm in length