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HSS blue ring ISO (BLT) metric coarse oxidised spiral flute taps are made with a strong high speed steel with a black oxide finish for deep blind holes with reduced wear and improved heat resistance.
Features and Benefits
High speed steel construction
Black oxide finish for reduced wear and improved heat resistance
Specification
For deep blind holes
Helix angle 45
BTL - Biteless taper
Taper lead to DIN form C (2 x P to 3 x P)
Tapping tolerance to 6H
DIN 371/376
Typical Applications
Tapping
Steel
Stainless steel
Cast iron
| Material Grade | M35 |
| Tap Type | Spiral Flute |
| Tapping Depth | 12.5mm |
| Thread Length | 8mm |
| Ring Colour | Blue |
| Thread Standard | Metric Coarse |
| Square Width | 4.9mm |
| Pitch | 0.8 |
| Helix Angle | 45 |
| Thread Direction | Right Hand |
| Overall Length | 70mm |
| Coolant Delivery | External |
| Number of Flutes | 3 |
| Class of Fit | 6H |
| Thread Size | M5 |
| Material | Vanadium High Speed Steel |
| Shank Diameter | 6mm |
| Material Application | Stainless Steels |
| Finish/Coating | Steam Tempered |
| Dimensions Standard | DIN 371 |
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