V: Insert Shape – Indicates a 35° rhombic (diamond) shape. This sharp profile provides excellent geometric accessibility, making it ideal for profiling, finishing, and semi-finishing operations.
N: Clearance Angle – Represents a 0° (negative) clearance/relief angle. Negative inserts are double-sided, meaning you can flip them over to utilize up to 4 cutting edges.
M: Tolerance Class – Specifies the manufacturing tolerance limits for the insert's indexable dimensions (such as the inscribed circle, thickness, and corner height).
G: Clamping & Chipbreaker Type – Denotes an insert featuring a cylindrical fixing hole and chip grooves/breaker geometry on both faces.
Dimensions Group (The Numbers)
13: Cutting Edge Length – Indicates a nominal cutting edge length of 13 mm (with an inscribed circle diameter of approximately 7.94 mm).
04: Insert Thickness – Represents a thickness of 4.76 mm.
04: Corner (Nose) Radius – Signifies a nose radius of 0.4 mm, which is typically preferred for fine surface finishing and lighter depths of cut.