1/4 - 20 UNJC - Emuge Spiral Flute 3B Tolerance Z (General Use) Tap GLT-1 Coated
B050C410.5485
1/4-20 UNJC - SF - Z - GLT-1
HSSE-tap for universal application in almost all 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:
- Designed for use in CNC-controlled machines.
- Tap for blind hole threads in long-chipping material.
- Similar DIN 371
- Chamfer Form C
- Not available on next day delivery, please contact us to check availability if urgent. Standard delivery is 2-3 business days.


| Thread | UNJC |
| Nominal Size | 1/4 |
| Threads per inch (TPI) | 20 |
| Coolant Supply | Without |
| Geometry | Z |
| Shank Diameter (d2) | 7mm |
| OAL (l1) | 80mm |
| Length of cutting edge (l2) | 13mm |
| Usable Length (l3) | 30mm |
| Square ■ | 5.5mm |
| Tap hole diameter | 5.25mm |
1/4 - 20 UNJC - EMUGE SPIRAL FLUTE 3B TOLERANCE Z (GENERAL USE) TAP GLT-1 COATED