HSS Ground Thread Straight Flute BSW (British Standard Whitworth) Tap Set | | Sherwood HSS Taps are the general purpose option for thread cutting in most materials including steel, some stainless steels, cast irons and non-ferrous materials such as Aluminium, Brass and many others. | | Features | • Bright finish | • Ground flutes | • Manufactured to ISO 529 | • Set contains 1 of each Taper,Second ,Plug tap |