1/4 UNC - Emuge Spiral Point Multi Tap GLT Coated
B520C300.5009
1/4-UNC-SP-MULTI-GLT
HSSE tap for universal application in almost all workpiece materials.
GLT-1 coating - Hard surface coating with anti-friction layer. In a PVD process (500 °C) a coating thickness of 2-4 μm can be realized. The combination of a hard surface coating (approx. 3,000 HV) with an anti-friction layer provides maximum tool life. Chip flow is also improved.
Product features and benefits:
- Tap for through hole threads in long-chipping material.
- The spiral point ensures optimum chip removal in the feed direction.
- Do not use this tap type for a reverse cut!
- Not available on next day delivery, please contact us to check availability if urgent. Standard delivery is 2-3 business days.

| Thread | UNC |
|
Nominal Size |
1/4 |
| Threads Per Inch (TPI) | 20 |
| Coolant Supply | Without |
| Geometry | MULTI |
| Shank Diameter (d2) | 7mm |
| OAL (l1) | 80mm |
| Length of cutting edge (l2) | 17mm |
| Usable Length (l3) | 30mm |
| Square ■ | 5.5mm |
| Tap hole diameter | 5.1mm |