Butterfield 1541 NPT HSS 1/2" Inch 14 Thread Pipe Tap, Round Shank w/ Square End

Description

Union Butterfield 1541(NPT) HSS 1/2" 14 Thrd Pipe Tap, Round Shank w/ Square End. Shipped with USPS First Class.
The Union Butterfield 1541(NPT) uncoated, high-speed steel pipe tap has straight flutes with medium hook and a round shank with a square end, and is used to create NPT (National Pipe Taper) right-hand threads in a range of materials, with strength in carbon steel and alloy steel. NPT thread is an ANSI-standard thread configuration designed to be used with a sealant to create a leak-free tapered pipe joint. The straight flutes are suitable for threading through holes (extending through the workpiece) and blind or bottoming holes (with only one opening). Designed for average conditions, this tap has a medium hook, or rake angle, that is suitable for general-purpose pipe tapping.
Right-hand threads are designed to tighten when a head or nut is rotated clockwise (the most common threading direction). High-speed steel (HSS) is a common general-purpose steel for cutting tools and is compatible with a variety of materials. With no coating or surface treatment, this uncoated tool can be used on a broad range of materials and provides an economical alternative to coated tools. The round shank with square end helps to minimize rotation in the tool holder.
This is in the older tube with rubber caps storage. There is a wire wrapped around the thread to keep the tap from moving in the tube.