Compatibility: The metric M10 x 1 mm tap and die set is suitable for making or repairing external and internal threads, is well suited for general applications, and features clear threads to meet processing needs. Applications: Can be used to treat holes during maintenance and repair work. Ideal for drilling and tapping alloy steel, die steel, cast iron, ferrous and non-ferrous materials, etc. The round die made of tool steel alloy offers good abrasion resistance. The tap and die set is sharp and durable. Easy to Use: Round dies can be used with an adjustable wrench (not included). The fixing screw in the center of the wrench should be inserted into the die slot and tightened. Machine taps are used on drilling machines, tapping machines, CNC machines, and milling machines. When threading, suitable lubricating oil should be added to the cutting edge of dies and taps.