MOLDINO Carbide Coated Drill Carbide OH Non-Step Borer 20WHNSB0570-TH 20WHNSB0570-TH 1 piece

Catalog number: 20WHNSB0570-TH Features: ●The NSB groove shape, which has excellent chip evacuation properties, and the TH coating, which has excellent stability even at high temperatures, allow for non-step, highly efficient machining. ●The W margin allows for high-quality machining. Applications: ●Workpiece: general steel, stainless steel, pre-hardened steel, cast iron. Specifications: ●Blade diameter (mm): 5.7 ●Groove length (mm): 139 ●Total length (mm): 190 ●Shank diameter (mm): 6.0 ●Effective machining depth: 20D (blade diameter x 20 times) ●Twist angle (°): 21-34 ●Tip angle (°): 135 ●Surface treatment: TH coating ●Lubrication type: internal lubrication Material/Finish: ●Carbide