60pcs tap & die set,taps and dies set. High speed steel or alloy steel. 60pcs tap & die set,taps and dies setCarbon steel, alloy steel,high ... .0,10x1.5, 12x1.75,4-40,6-32,8-32, 10-24,10-32, 12-24, 1/4-20,1/4-28 ... Metric Screw Pitch Gauge1 Inch Screw Pitch Gauge tap & die set 60pcs High speed steel Alloy steel