Features: brand new high quality Made of high quality material, durable Taps and dies are suitable for making or repairing male and female threads, for general purposes. Both taps and dies are right-handed. It can be used for maintenance and repair work of machining through holes. It is suitable for drilling and tapping of alloy steel, die steel, cast iron, ferrous and non-ferrous metals and other materials. HSS machine thread taps offer a combination of hardness and toughness for wear resistance. Alloy tool steel round dies have good wear resistance. The taps and dies are sharp and durable, and the thread is clear to meet the processing requirements. Round dies can be used with a die wrench (not included). The fastening screw in the middle of the wrench should be inserted into the mold groove and tightened. Machine taps are used on drilling machines, tapping machines, CNC and milling machines. Use with tapping oil to make threads stronger and make taps and dies more durable. When tapping, appropriate lubricating oil should be added to the cutting edge of the die and tap. Product parameters: Machine taps: Thread Size: M16 x 1.5mm; Thread Length: 33mm / 1.3"; Overall Length: 102mm / 4.02"; Square Shank Size: 10mm / 0.39"; Material: High Speed Steel (HSS), Flute Quantity: 4 Die: Thread Size: M16 x 1.5mm; Outer Diameter (OD): 38mm / 1.5; Thic kness: 14mm / 0.55, Material: Alloy Tool Steel (9CrSi) Package Included: 1 * tap 1 * Die Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight manual measurement deviation for the data.