1PC Core Box Router Bit — 12mm diameter · 1/4 radius round-bottom cutter · 1/2 inch shank Key benefits Creates clean, consistent round-bottom grooves for fluting, edge detailing, and decorative channels. 1/2 inch shank provides stability and reduced vibration for smoother cuts and better control. Compact 12mm diameter and 1/4 radius profile make it easy to produce precise, repeatable results on small to medium routing tasks. What it does Specifically designed for core box (round-bottom) cutting in woodworking. Produces a uniform semi-circular groove useful for joinery, signmaking, trim work, and decorative profiles. Useful for both single-pass shaping and shallow profiling when mounted in a router. Compatibility and fit 1/2 inch shank ensures proper fit and stability during use in compatible routers and collets. Single-piece design (1PC) is ready to install and use without additional assembly. Practical applications (real-world scenarios) Cabinet and furniture work: cut round-bottom grooves for inset lighting channels, wiring passages, or decorative flutes on drawer fronts and panels. Signmaking and molding: rout uniform concave channels for letters, accents, and profile edges. Small project shaping: form spoon bowls, concave handles, or shallow hollows in carving and craft projects. Performance and handling tips Use appropriate router speed and feed rate for the wood species to minimize burn and tearout. Make multiple shallow passes for deeper grooves to maintain precision and reduce stress on the cutter. Secure the workpiece and use proper clamping for safer, more accurate cuts. Contents 1PC core box router bit (12mm diameter, 1/4 radius round-bottom cutter, 1/2 inch shank) This router bit delivers a focused solution for producing round-bottom grooves with reliable fit and stable performance for a wide range of woodworking tasks.