Join
Proto save
£0.73
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.
Product Type | Production Tap |
Pitch | 18 |
Tapping Depth | 19.8mm |
Class of Fit | 2B |
Teeth per Inch | 18 |
Finish/Coating | Bright |
Thread Standard | UNC |
Material | Vanadium High Speed Steel |
Square Width | 5.5mm |
Dimensions Standard | DIN 371 |
Material Grade | M35 |
Thread Length | 20mm |
Shank Diameter | 8mm |
Material Application | Stainless Steels |
Thread Size | 5/16\ |
Ring Colour | Blue |
Helix Angle | 45 |
Thread Direction | Right Hand |
Number of Flutes | 3 |
Tap Type | Spiral Flute |
Coolant Delivery | External |
Overall Length | 90mm |
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.