T (Shape): Triangular insert geometry with a 60° included angle.
C (Clearance Angle): 7° positive clearance angle, ideal for reducing friction and cutting forces in internal boring or slender components.
M (Tolerance): Precision class indicating manufacturer standard tolerances for indexable inserts.
T (Fixing Style): Countersunk center hole designed for secure screw clamping (typically 40°–60° hole profile).
16 (Cutting Edge Length): 16.5 mm nominal length, matching a 3/8" Inscribed Circle (IC) size.
T3 (Thickness): 3.97 mm insert thickness.
08 (Corner Radius): 0.8 mm (0.031") nose radius providing a robust, fracture-resistant edge line for heavy scaling.
Chipbreaker & Carbide Grade Properties
-KR (Chipbreaker): Sandvik's heavy-duty roughing geometry. It features a reinforced cutting edge land width of 0.1 mm and a 0° land angle to withstand aggressive structural shocks, deep radial cuts, and uneven material skins.
H13A (Material Grade): An uncoated carbide substrate (HW) combining ultra-high hot hardness with excellent abrasive wear resistance. Because it lacks a thermal coating layer, it maintains an extremely sharp edge line