... steel 3.chrome plated 4.15 degree offset, 6-32m Standard ... 8,10,12,13,14,15,17,19MM 20 17 ... SIZE:8,10,12,14,15,17,19.22,24MM ... 10,11,12,13,14,15,17,19.22,24MM ... ,11,12,13,14,15,17,19.22,24MM ... ,11,12,13,14,15,17,19.22,24MM ... 10,11,12,13,14,15,16,17,18,19MM ... ,10,12,13,14,15,16,17,19,22, ... ,11,12,13,14,15,16,17,18,19, ... ,11,12,13,14,15,16,17,18,19, ... SIZE:8,10,12,14,15,17,19.22,24MM12PC: ... ,13,14,15,17,19.22,24MM410* ...