003 tolerance Detaild specification, pls check following photos. Hook &ShearAngles High hook &shearanglesallow Cutters (C3 Micro-grain Tungsten Carbide) to slice smoothly into stock producing clean, splinter free;Bearing: Totally enclosed &lubricatedSpecifications: Item:8mm Shank Material: 45# steelCarbide tip: YG6Shank Diameter: 8mm Shank Balance: +/- . Build-up &heatresistantTeflon coating. XCAN Joint Router Bit 8mm Shank Raised Panel V Joint Bits Finger Joint Glue Milling Cutter Tenon Cutter Wood Router Bit I3591105951 Used for cabinet door core plate molding Durable Router Bit Set: High-precision grinding technology provide excellent abrasion resistance and sharp edges, precise cutting will reduce chipping and burrs, can withstand some heavy-duty use and the test of time. 100% Brand new and high quality . 8mm Shank V Shape Router Bit 90 Degrees Wood Route... – Grandado YG6 Carbide Tip Router Bit 1 Pc 8mm Shank Extra Long Blade Cutting Straight Router Bit Woodworking 8mm Shank Router Bit