Dormer Tap Set, 4 UNC Thread

HSS straight flute hand tap for producing UNC threads in most materials.

Manufactured to ISO529.

Precision HSS taps to ISO529 designed to produce repeatable tolerance threads in most engineering materials. Suitable for medium/high rate production. All taps are to tolerance class 2, giving 6H fit (metric taps) or 2B fit (UNF & UNC taps)