Wide range of processing ---- for cutting/engraving/carving/grooving/slotting/drilling/hollowing/positioning/roughing /milling in materials like MDF, PVC, Acrylic, wood, solid wood, chipboard, composite board, organic board, core board, density board etc. Dimensions ---- shank diameter (SD): 1/8" (3.175mm); cutting edge diameter (CED): 1/8" (3.175mm); cutting edge length (CEL)/flute length: 22mm; overall length (OAL): 45mm High efficiency ---- these bits own sharp edge which is able for fast engraving that makes high efficiency; durable, high precision and not easy to break; it is smokeless and burr-free while processing Perfect cutting ---- the design of 2 flutes, mirror polishing, large chip space of CNC Router Bit makes non-stick crumbs, smooth cutting and fast chip-removal Package contents ---- 10pcs 2-fluted tungsten steel straight bits assorted in portable storage case straight CNC router bits