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 speed steel.Content:27 Taps: 3x0.5, 4x0.7, 5x0 ... .25, 9x1.25, 10x1.0,10x1.5, 12x1.75,4-40,6-32,8-32, 10-24,10-32, 12-24 ... Pitch Gauge1 Inch Screw Pitch Gauge tap & die set 60pcs High speed steel Alloy steel