... Inch sizes. High speed steel or alloy steel. 40pcs taps & dies set,tap and die set.Metric or Inch sizes.Contents ... , 8X1.25, 10X1.25, 10X1.5, 12X1.5, 12x1.7516 Dies: 3X0.5, 3X0.6, 4X0.7, 4X0.75, 5X0.8 ... /16-20, 1/2-13,1/2-20,1/8NPT2717 Dies: size as taps 1 Tap Wrench: 1/16-1/2 ... Wrench: 1" O/D1 Screwdriver1 Screw Pinch Gauge 40pcs taps dies set high speed steel or alloy steel