Router Bit Set can be use on and other automatic routers as as hand- and table-mounted portable routers, Suitable for all kind of composition materials, plywoods, hardwoods, and softwoods, Fit on portable or table-mounted router Top Bit with Sharp cutting, rotation, quick operation,High hardness, good wear resistance, significantly the service life Solid hardened steel bodies with anti design. -up & heat resistant coating. Totally enclosed & lubricated. Industrial grade Mini- grain carbide blade. The main function: trimming, three-dimensional clearance angle, slotted. Heat-resistant coating baking to prevent the accumulation of wood , resin and asphalt. colour:yellow ,blue Material:alloy size:1/4inch Package Contents: 3* yellow milling cutter 2* blue milling Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.