1/2" - 20 NF 3-Flute, H3 Semi-Bottoming Series/List # 2091 Spiral Flute Tap MT3534484

ShearTapô ShearTapôfor Stainless Steel & Carbon Steel up to 35Rc hardness. CNC Styleenchances chip evacuation and cutting fluid flow to the cutting teeth for reduced friction, heat and galling. Also reduces contact between the tap and the workpiece. Semi-Bottoming Styleare designed to lift the chips sout of the hole in blind hole tapping, eliminating chip evacuation problems which can result in damaged threads and broken taps. They will also bridge opeings, keyways and other interruptions in the tapped hole. Steam Oxide over Nitrideincreases wear resistance, reduces friction, reduces galling and chip welding, improves chip flow and increases tap lubricant retention.Country of OriginUSAWarning-Proposition 65- For Californian Users onlyWARNING: This product contains a chemical known to the State of California to cause cancer or Birth defects. For more information go towww.P65Warnings.ca.gov Thread Diameter Size (TDZ) 1/2" Special Feature ShearTap Threads per Inch (TPI) 20 Tool Type Production Tap Thread Standard NF Chamfer Semi-Bottoming Overall Length (OAL) u200e3-3/8" Coating Steam Oxide Over Nitride Thread Cutting Part Length (THL) 0.63" Flute Type Spiral Flute Count (NOF) 3 Style Semi-Bottoming Flute Helix Angle (FHA) 48 Degrees Measurement Type Fractional Applicable Material Steel | Stainless Steel ToolTypeName Spiral Flute Taps Cutting Edge Material HSS Series/List # 2091 Thread Tolerance Class (TCTR) H3