Hanson 1905P Tap 1/2-14 Npt Pipe Pouched, for Tap Die Extraction These IRWIN HANSON Pipe Taper Taps cut internal threads in pipes. Each taper tap is great for pipe fittings and is tapered at a rate of 3/4 inches per foot. Features Each taper tap is used to cut internal threads in pipes This taper tap is ideal for pipe fittings Taps are tapered at a rate of 3/4 inches per foot Nominal size of the tap is that of the pipe fitting being tapped 1/2" size with 14 NPT (National Pipe Taper) USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.