Item Type: Ball End Mill_x000D_Material: High speed steel_x000D_Outer Diameter: 1/8in_x000D_Drill Type: Ball head 1GOOD WEAR RESISTANCE: Possess high hardness, high wear resistance, high strength, come with sufficient bending market and wear resistance 2EFFICIENT PERFORMANCE: Adopt high speed steel material, which has good milling and cutting performance to ensure high efficiency 3WIDE PROCESSING RANGE: Can be used for PCB, SMT, CNC, mold, plastic, carbon fiber, wood, printing plate and other accurate processing components 41/8IN SHANK DIAMETER: End mill milling cutter come with ball nose drill type, drill shank diameter for 1/8in, universal and practical 510PCS IN TOTAL: The package contain a total of 10pcs of ball nose cutter, enough for you to replace and use, very convenient10 x Ball End Mill