4-in-1 filet positioning template with a semicircular clamp design provides fast, accurate setup for routing filet edges. The 4-in-1 filet radius template enables easy and precise filet cuts with a router bit. 8 radius options: R10, R15, R20, R25, R30, R35, R40, R50. These options support a range of surface prep, sanding, and finishing needs when forming fillets. Compatible with standard router bits used for fillet edges, making it suitable for common woodworking tasks. Versatile for many projects: trim tabletops, shape chair edges, build picture frames, and round over wood corners. It helps you achieve consistent results across different applications. Easy to use: simple construction with no complex components. The quick clamp positions the corner radius precisely, saving time and effort. User-friendly design assists in trimming corners of boards with confidence.