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! Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.