Taper Pipe Tap (HCS), 2 in 11 1 2 NPT,Taper Tap, 6 Flutes ORS NASCO Upper and lower tongs are Upper and lower tongs are made from a high copper alloy for maximum conductivity and strength Top and bottom tip insulators are a molded fiberglass compound and will withstand intensive heat impact Handles are molded from a durable glass filled nylon material with a good heat and impact resistance Oval point screw cable connection is standard on all models Light nitrile palm coated Interlock lining Knit wrist Cuts internal threads in pipes Nominal size of the tap is that of the pipe fitting being tapped Available in National Pipe Taper (NPT) and British Standard Pipe Taper (BSP) Ideal for pipe fittings Tapered at a rate of 3 4" per foot