Cuts groove for Trend Routaseal. Position seal into apex of jamb and stop. More economic to use than more complex seals. Use with a small 1/4 inch shank hand router. Use STC for abrasive material. Specifications: • Shank Diameter: 1/4 • Dia Metric: 5 • Cut Length Metric: 3 • Overall Length Metric: 61 • Angle: 115