BB Step Drill 90 Degree for Steel CNC Precision Solid Carbide Drilling Tools Coated Screw Hole BB2055 Hole Diameter:2.1x5xD4x10x50 BB Carbide Ball End Mill(Click

BB Carbide Ball End Mill(Click the image to view details

high thermal conductivity and good thermal stability of metals

Product Advantages | 产品优势

Tungsten steel makes the drill hardness higher

Large Chip Removal Groove

BB Step Drill 90 Degree for Steel CNC Precision Solid Carbide Drilling Tools Coated Screw Hole BB2055 Hole Diameter:2.1x5xD4x10x50 BB Carbide Ball End Mill(ClickOnce Formed Drilling + Chamfering The blade edge is sharp without burrs, easy chamfering Greatly improves work efficiency. Solid Carbide Bars High Hardness High Wear Resistance A specialized tool for high hardness and high speed cutting applications with higher wear resistance and strength Blade Nano Diamond Coating Aluminum Processing Strong Thermal Insulation Coating Nano Crystal Strong and Tough Base Film Enhance tool hardness and service life,