TAP GUN NOSE 1/2" UNF HSS-Co VOLKEL
TAP-1/2UNF-SP
Imperial Taps
Description
Product Code : TAP-1/2UNF-SP
Description: 1/2" UNF Gun Nose Tap
Number Pieces : 1
Brand :
Specs :
Surface Finish: Bright
Material: HSSE - V
Flute Type: Straight
Diameter: 1/2"
TPI: 20
Overall Length: 84mm
Tapping Drill: 11.50mm
Type: Spiral Point (Gun Nose)
Notes :
UNF (Unified National Fine)
This thread form was introduced in 1948 as an attempt to standardise thread forms in the USA, Canada, and the UK. The thread profile of UNF is the same as for metric threads and is described in the JIS B0206 standard. The thread is described by its major diameter and the number of threads per inch of length (TPI) When used on external threads this series has greater tensile stress area than coarse load threads of the same size. Fine series threads will resist stripping out better than coarse threads in areas where the external and mating internal threads are subject to equal loads or greater than the capacity of the screw or the bolt. Fine threads are also used where the length of engagement is limited or where wall thickness demands a fine pitch.
Spiral Point
Spiral Point Taps are used for machine tapping blind and through holes where there is sufficient clearance to accommodate chips. Manufactured from super tough HSSE-V this modern design tap uses straight flutes supplemented by angular cutting faces at the point to produce a fine finish on the threads. Shallower flutes achieves a stronger cross section allowing the tap to withstand greater cutting forces.
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