Mortise Centering Router Base

Simply straddle the board between the pins and cut your mortise - perfectly centered every time! Features: Plate is constructed of 1/4" Acrylic with 1-1/2" opening, and is transparent for visibility Solid brass guides thread easily into 3 different insert settings for a variety of wood thicknesses and for non-centered mortises 11/16"L guide posts Will this router base work with my router? Predrilled hole pattern fits: Bosch 1617-1618 (fixed base only) Dewalt DW616/DW618. Makita 1100-1101 series Porter-Cable 690/890 series Note: If you plan to use this product with a Skil router, please download and use the Drilling Template in the Technical Documents section.