【Efficient Cutting】: This router bit is ideal for flattening wood slabs, refacing or planing the top surface. 3-wing design, with 60mm larger cutting diameter, perfect for fast material removal on large surfaces, leaving an excellent finish on the surface. 【Rotatable & Replaceable Inserts】: This face milling cutter comes with 3 4-sided tungsten carbide inserts (12mm x 12mm x 2.2mm, 35 degree, straight hole). All 4 insert edges can be used. Replace the inserts if necessary, which are available on ASIN “B08V8PWL6S” 【Smooth Rotation】: Each SpeTool router bit undergoes strict quality testing to ensure perfect cutting tolerance, balance and excellent concentricity, has good resistance to bending or damage, and you provides more stable processing. 【Suitable materials】: suitable for soft and hard woods, particle board, MDF, plywood, laminate, acrylic, etc. 【Adaptation】: Used on CNC router tables and other automatic routers as well as manual and table mounted plunge routers with sled for your woodworking. Product Description Flattening slabs is hard work…until you have them Advantage of the insert cutter Insert router bits are a great investment for woodworking shops that produce jobs that require a repetitive router function, as the cost of carbide cutters will bring substantial savings over time to the cabinetmaker. Router bits with insert knives contain radial and axial groove for better positioning and security of axial movement of the knife. These router bits with insert cutters are for finishing, for routing, plunge cutting, grooving and more in board materials (DTD laminate, MDF) and hardwood, for use on power tools and CNC machines. In router bits, cutters can be replaced or reversed quickly to work on different wood materials in a short time. Professional surfacing cutter for spoilboard Perfect for fast stock removal on large surfaces leaving an excellent finish on the surface. Each SpeTool Slab Flattening Cutter undergoes strict quality testing to ensure perfect cutting tolerance, balance and excellent concentricity, has good resistance to bending or damage, and offers you a more stable processing. Efficacy You can make this flattening process smooth if you are equipped with the right tools. Cost effective All edges of carbide inserts can be used. Replace carbide inserts as needed, instead of replacing the entire bit. Custom inserts 2.2mm insert thickness will prevent scratches, provide long life.