WOOD ROUTER BIT SET - Tungsten carbide router bits for woodworking include flush trim router bit contain a 1/2' diameter shank and 3/4' inch dia. bearings. Top and Bottom Bearing Router Bit is great for all your large stock trim applications. C3 CARBIDE CUTTERS - All of our router bits use premium C3 carbide cutters manufactured from C3 micro grain tungsten carbide. C3 carbide is the highest grade used in router bit manufacturing. Carefully ground to a smooth 600 grit mirror-like finish. CLEAN SPLINTER FREE CUTS - Yonico router bit sets feature high hook and shear angles, allowing cutters to slice smoothly into stock resulting in clean and splinter free cuts that are devoid of burn marks. Use on CNC routers or table-mounted routers. SINGLE PIECE STEEL TOOL BODY - The bodies on all Yonico router bits 1/4 shank and 1/2 shank are manufactured from a single piece of solid hardened steel with fully enclosed and lubricated bearings. The full, solid tool body is an anti-kickback design.