Check the listing for details. WoodRiver MFT Dog Hole Router Template - 20 mm. Condition: New. Listed at 61.98 USD. WoodRiver MFT Dog Hole Router Template - 20 mm, 194783, Template machined from 5/16"-thick clear acrylic, Two twist lock dog pins for repeatable hole pattern, For use with 3/8" router bushing and 1/4" straight router bit (sold separately), Two pairs of adjacent location pins to align template with corner of workpiece, This WoodRiver® Router Template set is designed for making modular worktable grid based on a 20mm dog hole size. Whether replacing your FESTOOL MFT table top, or just creating your own worktable, you can accurately make any size work surface using this template with a plunge router, 3/8" router bushing, and 1/4" straight bit (all three sold separately). The key to this system are the unique Lock Mutts twist lock dog pins that accurately position the template and.