OSG EX Gold Drill, Regular for General Machining, 4.2, 60542, EX-GDR-4.2, 1 piece

Catalog number: EX-GDR-4.2 Features: ●High versatility, realizing non-step high-speed machining up to 4 to 5 times the blade diameter. ●The center of the drill tip adopts a new R blade shape. ●High speed and high feed are possible. Step cutting is not required because the chips are broken into transition fracture shapes. ●TiN coating with excellent wear resistance and adhesion resistance is adopted. ●The groove form is a high-rigidity type with a thick core. ●The position accuracy of the processed hole is stable, so punching and centering are not required. Applications: ●Cutting materials: low, medium, and high carbon steel, alloy steel, tempered steel, tool steel, cast iron, ductile cast iron, aluminum drawn material, aluminum alloy casting, magnesium alloy. Specifications: ● Blade diameter (mm): 4.2 ● Groove length (mm): 43 ● Total length (mm): 87 ● Shank diameter (mm): 6 ● Effective machining depth: 5D (blade diameter x 5 times) ● Surface treatment: TiN coating Material/Finish: ● Cobalt high speed steel (HSS-Co)