MOLDINO Carbide Coated Drill Carbide OH Non-Step Borer 03WHNSB0253-TH 03WHNSB0253-TH 1 piece

Catalog number: 03WHNSB0253-TH Features: ●The NSB groove shape has excellent chip evacuation properties, and the TH coating has excellent stability even at high temperatures, allowing 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): 2.53 ●Groove length (mm): 19 ●Total length (mm): 69 ●Shank diameter (mm): 3 ●Effective machining depth: 3D (blade diameter x 3 times) ●Twist angle (°): 21-34 ●Tip angle (°): 140 ●Surface treatment: TH coating ●Lubrication type: Internal lubrication ●NSB shape ●W margin adopted Material/Finish: ●Carbide