Create Perfect-Fitting Openings for Router Table Insert Plates
JessEm 03003 9-1/4-by-11-3/4-Inch Template for Mast-R-Lift or Mast-R-Plate, Wood - Power Router Accessories - Amazon.com
Brass Router Template Guide | Router Template Guide Set | Router Guide Bush Set - Hand Tool Sets - Aliexpress
Amazon.com: Rockler Router Plate Template - 1/2" MDF Material Router Table Plate - 8-1/4" x 11-3/4" Design - Templates for Bench Dog Router Plates - Easy to Use Router Accessory : Tools & Home Improvement
2pc. Electric Guitar Pickup Routing Template Set - includes 10 total templates for the most popular pickup styles! - C. B. Gitty Crafter Supply
Porter-Cable Strike and Latch Plate Template 59375 - The Home Depot