Item Descriptions:-CNC Router Bit: Ball nose end, 3.175mm(1/8Inch) shank, 3.175mm(1/8Inch) cutting edge diameter.-Spiral Upcut Design: Larger spiral chip space of CNC router bit makes non-stick crumbs, smooth cutting, and fast chip-removal.-High Hardness: Made of tungsten carbide, comes sharper edge, high wear resistance and long service life.-Application: Widely use for 3D relief sculpturing, cutting, engraving, slotting, milling and so on. Fit for for PCB, SMT, CNC, MDF, ABS, PVC, acrylic, nylon, resin, plastic fiber, carbon fiber and other precision parts processing and milling.-Convenient Storage: 10pcs for 1 set, come with a mini plastic box, convenient to store and carry.-Considerate Package: The box is inserted with foam to prevent the drill bits from beating each other up.Package:10x Ball Nose End Mill CNC Router Bits with Storage BoxItem Specifications:Cutting Edge Diameter (CED):3.175mmCutting Edge Length:17mmOverall Length:38mmShank Diameter:3.175mmCoat:Nano Blue CoatingMaterial:Tungsten Carbide