Sealey 12 piece trx star socket bit set stubby 1 4 3 8 1 2 sq drive sealey premier ak6228 drop forged chrome vanadium steel sockets heat treated and chrome plated with a fully polished mirror finish for corrosion resistance s2 steel stubby trx star bits with a zinc phosphate finish ideal for limited access applications knurled ring for extra grip with greasy fingers supplied on socket rail sealey ak6228 trx star socket bit set 12pc stubby 1 4 3 8 1 2 sq drive