Dormer Tap Set, #4 UNC Thread

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

Suitable for tapping repeatable tolerance threads in through or blind holes by hand or machine
7° cutting rake angle
Bright finish

Manufactured to ISO529.

ISO529

7777

Engineering Taps - Straight Flute (Dormer)

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)