Durable Materials — UNC Thread Tap is made of high-quality high-speed steel M2 materials.With a higher hardness level than traditional carbon steel, this pipe taps are more durable and long-lasting. Fast Chip Removal Design — Cutting Direction: Right Hand. Accuracy Class: 2B. Straight 3 flutes are ground to provide fast chip removal, and no blocking make your threads machining faster and easier. Wide Applications — Make or repair thread, suitable for most metals,drilling mild steels, aluminum, iron, copper, stainless steel, hard plastic, processing through holes or shallow holes. Add appropriate tapping oil for higher quality internal threads and more durable taps. Machine Taps Usage — Used in drilling machines, tapping machines, automatic machines, machining centers, CNC, milling machines, not recommended for hand and electric drill tapping. Recommended feed speed: ordinary steel: 6-15m/min; harder steel material: 5-10m/min; stainless steel: 2-7m/min; cast iron: 8-10m/min. Package Include — 2 pcs No 8-32 UNC Tap. Generally used in conjunction with tapping machines, integrated bench drills, CNC lathes, machining centers, etc. Manual processing is also possible. When operating, control the speed according to the hardness of the material, the higher the hardness of the processed product, the slower the speed.