D | D | D | 55° Rhombic (Diamond) shape, providing high clearance for intricate profiling and shoulders. |
N | N | N | 0° Negative clearance angle to enable double-sided use (4 effective cutting corners). |
M | M | M | Mid-range precision tolerance class regulating thickness and inner profile limits. |
G | G | G | Double-sided configuration featuring a cylindrical center pinning hole and built-in chip breakers. |
Size / IC | 15 (\(15.5\text{ mm}\) cutting edge length) | 4 (\(1/2\text{ inch}\) Inscribed Circle) | The overall size classification of the internal profile pocket. |
Thickness | 06 (\(6.35\text{ mm}\) thickness) | 4 (\(4/16\text{ or }1/4\text{ inch}\) thick) | Vertical cross-section thickness built to resist high deflection forces. |
Corner Radius | 12 (\(1.2\text{ mm}\) radius) | 3 (\(3/64\text{ inch}\) radius) | A robust 1.2 mm nose radius that balances edge strength with high-feed surface finishes. |