Technical Breakdown of the Part Number
1. Insert Geometry & Dimensions (ISO Standard)
C (Shape): An 80-degree rhombic (diamond-shaped) profile that balances edge strength with versatile clearance across longitudinal turning and facing operations.
C (Clearance Angle): A 7-degree positive side clearance angle designed to eliminate drag and rubbing against the workpiece wall.
M (Tolerance Class): Dictates standard precision tolerances on the insert’s thickness, nose height, and inscribed circle sizing.
T (Clamping & Chipbreaker): Indicates a single-sided insert featuring a 40 to 60-degree cylindrical countersunk center hole for screw-lock tool holders.
09 (Size): Represents a cutting edge length of 9.5 mm (or an Inscribed Circle of 9.525 mm).
T3 (Thickness): Specifies an insert body thickness of 3.97 mm.