Forged chrome vanadium steel sockets with extra long s2 phosphate coated steel stock bits sockets heat treated and chrome plated for resistance to corrosion special kit designed for the automotive technician satinpolished finish with knurled ring to assist gripping with greasy fingers contents hex 5 6 7 8 10 12mm ribe m8 m9 m10 m12 m13 m14 spline m8 m10 m12 m14 trx star t40 t45 t50 t55 t60 t70 supplied in composite carry case