D (Insert Shape): 55° Rhombic (Diamond-shaped) profile. It provides excellent clearance compared to 80° CNMG shapes, making it the industry go-to for complex profiles and copy turning.
N (Clearance Angle): 0° Negative clearance. This design allows for a double-sided insert geometry, giving you 4 usable cutting edges (2 on top, 2 on the bottom) to minimize tooling costs.
M (Tolerance Class): Utility precision class regulating indexing accuracy limits.
G (Fixing/Type): Cylindrical center hole with double-sided, molded chipbreaker grooves.
15 (Cutting Edge Length): 15.5 mm nominal length, matching a 1/2" Inscribed Circle (IC) size. (ANSI Equivalent: DNMG 442).
06 (Thickness): 6.35 mm (1/4") insert body thickness.
08 (Corner Radius): 0.8 mm (1/32") nose radius, providing a balanced threshold between robust edge strength and low radial cutting forces.
Chipbreaker & Premium Carbide Grade
-TM (Chipbreaker): Designates a specialized Medium-Turning / General-Purpose geometry. It features a progressive chip-groove ramp that handles fluctuating depths of cut cleanly without causing bird-nesting or structural vibration.
CC1135G2 (Carbide Grade): This is a premium PVD (Physical Vapor Deposition) coated carbide grade featuring a specialized G2 micro-grain substrate.
The Benefit: The PVD coating is applied much thinner and sharper than a CVD coating. This provides supreme resistance to thermal shocking (ideal for interrupted cuts and heavy coolant flow) and prevents material from welding onto the edge.
Core Application & Starting Parameters
This exact insert configuration is a highly versatile workhorse built primarily for Stainless Steel (ISO M), Low-Carbon Steels (ISO P), and High-Temperature Exotic Alloys (ISO S).
Recommended General Starting Data:
Depth of Cut (
): 1.5 mm to 3.0 mm (Functional operating window: 0.5 mm to 4.5 mm)
Feed Rate (
): 0.20 mm/rev to 0.35 mm/rev (Functional operating window: 0.12 mm/rev to 0.50 mm/rev)
Cutting Speed (
): 140 to 210 m/min when turning standard 304/316 Stainless Steels.
