uxcell 5/16"-18 BSW Spiral Flute Thread Tap, Machine Threading Tap HSS-Cobalt Screw Tapping Tool for Machinist Thread Repair, H2 Tolerance

Tap Size: 5/16"-18 BSW thread, H2 tolerance. Spiral flute design, upward chip removal. Right hand thread cutting, clear threads without burrs, fast tapping with accuracy. Material and Finish: M35 cobalt high-speed steel tool (5% Co) is with high hardness (up to around 67HRC) and toughness for wear resistance. Features just the base substrate without any additional coatings, great for wide ranges of applications. Applications: Suitable for processing blind holes and sticky materials. Great for drilling and tapping aluminum, die steel, stainless steel, bronze, hard plastics, etc. Easy to Use: Used on drilling machines, tapping machines, CNC and milling machines. Use with tapping oil to get higher quality threads and more durable taps. Tips: Machine taps are suggested to be used with tap collets with overload protection. Hand use is easy to cause damage to the tap due to uneven force.