Specification: Cutting Edge Diameter: 1mm / 0.039" Cutting Edge Length: 30mm / 1.18" Shank Diameter: 1mm / 0.039" Overall Length: 60mm / 2.36" Material: K35 Tungsten Carbide (HRC92-94) Finish: Titanium Coated (Nanometer Coating) Cutting Hardness (Max