1/2" NF, 20 TPI, 4 -Flute, H3 Plug Straight Flute Tap Series/List #2021 MT7934881

Straight Flute Hand Tap for Cast Iron Steam Oxide Over Nitrideincrease wear resistance, reduces friction, act as a lubricant, reduces galling and chip welding, improves chip flow and increase tap lubricant retention. Taps for Cast Ironfeature specific geometry and wear resistant surface finish for tapping materials for cast iron, cast brass and other brass materials and non-metals that produce small or powdery chips.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" Tool Type Cast Iron Tap Threads per Inch (TPI) 20 Chamfer 3 to 5 Threads Thread Standard NF Coating Steam Oxide Over Nitride Overall Length (OAL) u200e3-3/8" Flute Type Straight Thread Cutting Part Length (THL) u200e1-21/32" Style Plug Flute Count (NOF) 4 Measurement Type Fractional Cutting Edge Material HSS Series/List # 2021 Thread Tolerance Class (TCTR) H3 Thread Size u200e1/2" - 20