Forged chrome vanadium steel sockets with s2 steel hex stock bits sockets heat treated and chrome plated for resistance to corrosion satinpolished finish with knurled ring to assist gripping with greasy fingers supplied in carry case contents length 55mm m5 m6 m7 m8 m9 m10 m12 m13 m14 length 100mm m5 m6 m7 m8 m9 m10 m12 m13 m14 length 140mm m8 m9 m10 m11 m12 m13 m14 length 200mm m8 m9 m10 m11 m12 m13 m14