1/4" - 28 NF 3-Flute, H7 Semi-Bottoming Series/List # 2091 Spiral Flute Tap MT3534602

ShearTapô ShearTapô -for Stainless Steel & Carbon Steel up to 35Rc hardness. Oversizetaps are mainly used for parts that will be plated or heat treated after tapping. Also used in materials that tend to shrink after tapping. 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) 1/4" Special Feature ShearTap Threads per Inch (TPI) 28 Standard 0.0035" Oversize Tap Thread Standard NF Tool Type Production Tap Overall Length (OAL) u200e2-1/2" Chamfer Semi-Bottoming Thread Cutting Part Length (THL) 0.433" Coating Steam Oxide Over Nitride Flute Count (NOF) 3 Flute Type Spiral Flute Helix Angle (FHA) 48 Degrees Style Semi-Bottoming Applicable Material Steel | Stainless Steel Measurement Type Fractional Cutting Edge Material HSS ToolTypeName .0035 Oversize Taps Thread Tolerance Class (TCTR) H7 Series/List # 2091