Drill dim.-Dia. 2.5, 3.3, 4.2, 5.0, 6.8, 8.5, 10.3mm Tap dim.-3 x 0.5, 4 x 0.7, 5 x 0.8, 6 x 1.0, 8 x 1.25,10 x 1.5, 12 x 1.75 Material-SKH With tap handle