Adjustable router circle jigs. Available in 2 sizes, kit #1 has a range of from 2.75"-34" circle, kit #2 has a range of 2.75"-50" circle both when using a 1/4" cutter. Each kit includes the main router plate/slide assembly 1 standard pin guide and 1 extended pin guide. The stainless slide is laser marked with 1/32" graduations used as reference marks when making circle size adjustments. The main components are CNC machined from 6061 aluminum with 303 stainless slides and assembled with stainless hardware. These are for full size plunge base routers.