1/8 CNC Router Bits O Flute End Mill Shank,5/16 Inch Cutting Length Downcut Carbide Spiral Single Bit for Acrylic PVC MDF Wood

This is a o flute down-cut bit,1/8 Shank, the purpose of a downcut bit is to deliver the smoothest possible surface cut. You get minimal or no surface tear out with a downcut bit because the cutter is spiraling downward rather then upward.The down cut bits leaves a clean top edge but a rough bottom edge. By contrast, upcut bits usually provide better groove clearance of waste and a smoother bottom cut but a less smooth top surface cut. So please choose the correct bit based on your project need Carbide Spiral Downcut Bit with 1/8 inch Shank , 1/8 Inch (3.175mm) Cutting Diameter, 5/16 Inch (8mm) Cutting Length, 1-1/2" (38mm) for total length,Pack of 5 This 1/8 single flute end mill is widely used For CNC Engraving, Milling, Roughing, Hollowing, 3D sculpturing purposes .Ideal For carving/cutting/engraving/milling/slotting/sculpturing in materials like MDF, ABS, PVC, acrylic, nylon, resin, plastics, density board, wood, plywood, hardwood etc. The design of single flute, larger spiral chip space and mirror polishing of CNC router bit makes Non-stick crumbs, smooth cutting and fast Chip-removal This o flute end mill 1/8 shank with high precision grinded and polished, high abrasion resistance and temperature resistance, good rigidity, not easy to break