- Material: High-strength aluminum router table insert plate built to resist deformation, withstand years of use, and provide lasting strength, wear resistance, and impact tolerance. - Performance: Router insert plate kit includes 4 router insert rings and screws, covering a range of bit sizes and tasks. This setup improves alignment, tool control, and overall efficiency when using a power router. - Fit and compatibility: Plate measurements are provided in both inches and centimeters with a 0 reference at the bit position. Most routers are compatible with this metal insert plate. Two red caps are included to accommodate different bit diameters. - Contents and versatility: Suitable for woodworkers and DIY enthusiasts. Includes 4 router insert rings, aluminum router plate insert, and 15 screws. - Practical applications: - Dado and groove routing in hardwood or softwood with precise alignment. - Edge profiling and template routing for cabinetry or furniture making. - Repetitive routing tasks in a home workshop for consistent results.