Features 1、FLUTE DESIGN: A router bit with a scoring tool, very suitable for cutting tight corners. Adopting a unique 2 and 2 blade design, compared to traditional two blade router bits, the cutting bottom has a smoother finish. 2、HIGH CARBON STEEL MATERIAL: This spoilboard bit is made of excellent high carbon steel and has a sturdy body that can be used repeatedly. 3、EXTENSIVE APPLICATION: 1/4in shank insert style spoilboard bit offers superior performance, a finer surface finish, and better 90° angle clearance when used to reshape spoilers, plan large plywood, finish the surface of wood, groove, or slot. 4、EXCELLENT PERFORMANCE: This router bit has a large chip space, effective chip removal, light cutting, and low milling resistance. Long lasting rust resistance, oil free storage are available for the black ti electroplating technology. 5、IDEAL SUPPLEMENT: This router bit with a 1 1/4 cutting diameter can provide you with refine works, choose and use for better woodworks！ Specification Item Type: Insert Style Spoilboard Bit 1/4in Shank Material: High Carbon Steel, Cemented Carbide Shank Diameter: 1/4 inch (6.35mm) Cutting Diameter: 31.75mm (1 1/4 inch) Cutting Knife Size: Approx. 10 x 10mm / 0.39 x 0.39in Package List 1 x Router Bit 1 x Storage Box