(1) combination of upper and lower , SHARP ;(2) High precision grinded and , high abrasion resistance and temperature resistance, good rigidity, not easy to break;(3) No burrs for Up and down spiral machining;(4) High performance-to- , the work efficiency, reduce cost;Type: UP & DOWN Cut Two Spiral Solid Carbide Endmills;Diameter: 3.175mmDiameter: 3.175mmCutting Length: 17mmOverall Length: 38mmSuitable Materials:Cutting, milling on:(1) MDF, particle board, board with lagging, log, affixed to the skin panels;(2) Acrylic, PVC, resin, plastic, chipboard, composite board, melamine board;(3) Solid wood, native wood, plywood, lotus plate;Applied to:Router Machining , Woodworking Machine, Advertising Router, etccolour:silverMaterial:Tungsten cobalt alloyPackage Contents:5 x Two SpiralOnly 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 thing. The measurement allowed error is +/- 1-3cm.