Specifications:Machine Tap:Thread Size: M12 x 1mm; Thread Length: 24mm / 0.94"; Overall Length: 79mm / 3.11"; Square Shank Size: 7mm / 0.28"; Tolerance Grade: H2; Material: High Speed Steel (HSS), Flutes Quantity: 4 FlutesRound Die:Thread Size: M12 x 1mm; Outside Diameter (OD): 38mm / 1.5"; Thickness: 10mm / 0.39", Material: Alloy Tool Steel (9CrSi)Package Included:1 x Tap and Die Set (1 x Machine Tap, 1 x Round Die)Descriptions:1. Tap and die set are suitable for making or repairing male and female threads, good for general purpose applications. Tap and die are both right hand thread.2. Can be used to process through holes in maintenance and repair work. Great for drilling and tapping alloy steel , die steel, cast iron, ferrous and non-ferrous materials etc..3.