noscriptHSS 'Blue Ring' Taps: Spiral Flute (BLF) - UNC, Oxidised | Cromwell Tools
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HSS 'Blue Ring' Taps: Spiral Flute (BLF) - UNC, Oxidised

4 Variations

Spiral Flute (BLF) - UNC
HSS-EV Oxidised Finish. For shorter blind holes. Taper lead to DIN form C (3 x P). Tapping tolerance to 6H. Manufactured to DIN 371/376.

UNC - Unified National Coarse Bright Finish
Tapping tolerance to 2B.