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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
| Shank Diameter | 2.8mm |
| Tap Type | Spiral Flute |
| Ring Colour | Blue |
| Coolant Delivery | External |
| Thread Size | M2 |
| Overall Length | 45mm |
| Class of Fit | 6H |
| Thread Direction | Right Hand |
| Pitch | 0.4 |
| Material Application | Stainless Steels |
| Thread Length | 8mm |
| Number of Flutes | 3 |
| Material | Vanadium High Speed Steel |
| Helix Angle | 45 |
| Thread Standard | Metric Coarse |
| Square Width | 2.1mm |
| Finish/Coating | Steam Tempered |
| Dimensions Standard | DIN 371 |
| Tapping Depth | 5mm |
| Material Grade | M35 |
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