1″ BSPF HSS Taper Hand Tap FEW

Parallel (straight) thread, British Standard Pipe Parallel thread BSP; originally also known as British Standard Pipe Fitting thread/BSPF which have a constant diameter. For producing precision threads by hand tapping, for starting threads – either second or bottoming taps should be used after to achieve desire thread depth.
General purpose use.
Through & blind holes.
Suitable for both hand and machine operations.
Threads per inch 11
Drill diameter 31mm
Brand FEW