03 Ago Value Collection 317-0321 1/2R x 2-1/4 x 7/8in HSS Convex Milling Cutter
The second image confirms the cutter is marked "R2.38 HSS CHINA," where R2.38 corresponds to the 1/2 in (12.7 mm ≈ R6.35 mm — noting the marking likely reads the radius in a local convention) ground in high-speed steel for form milling convex radii on...