3-piece core box router bit set, 1/2 shank, diameter 3/4inch, 1-1/4inch, 1-5/8inch round nose drill bit set, high hardness alloy material, fast cutting speed, strong and . The core box router bit set adopts high- C2 carbide blade, blade and longer service life, solid hardened steel body with anti-rebound design; build-up and heat-resistant coating. Suitable for cutting solid wood, particle board, plywood, MDF and different wood composite materials; round nose router is used for cutting, beading, grooving and general decoration. Suitable for CNC and other automatic routers, such as woodworking engraving machines, very suitable for woodworking, edge, trimming, grooving and wood grain projects, can meet the diverse production needs of woodworking Industrial grade core box router bit, carbide, long service life, strong wear resistance; materials can cut and generate columnar, semicircular grooves. Colour:Blue+Red Material:Cemented Carbide Package Contents: 1 set of Round nose drill bit(1 x 3/4inch(red),1 x 1-1/4inch,1 x 1-5/8inch) Only the above package content, other products are not included.