20pcs taps & dies set, tap and die set. Metric size,Din standard. HSS or alloy steel, carbon steel. 20pcs tap & die set, tap and die set.Metric size,Din standard.Carbon steel,alloy steel or high speed steel.Contents:1) Metric size 9 taps: M3x0.5,M4x0.7,M5x0.8,M6x1.0,M8x1.25,M9x1.25,M10x1.5, M12x1.759 dies: size as taps1 die wrench O/D 25mm1 T-tap wrench M3-122) Inch size 9 taps: 6-32,8-32,10-24, ...