EVERYTHING INCLUDED circle guide comes with calibration disc for precise router centering and pivot pins as well as router mounting hardware. The SPOT ON router jig guide allows you to cut up to 184 different-sized circles with diameters ranging from 7 to 52 3/4 inches in ¼ inch increments. Router Circle Jig Circle Cutter Router Jig – Router Circle Cutting Jig Cuts Perfect Circles From 10” To 52” D Circle Cutting Jig Includes Two Center Pivot Pins Circle Cutting Tool Fits Most Popular Routers Circle Cutter Guide For Plunge Routers The Spot On router circle guide is made from high-quality materials providing you with a long-lasting circle cutter. The Spot On router circle guide is made from high-quality materials providing you with a long-lasting circle cutter. The precision tooled calibration disc allows for prefect centering on your router This allows the users to get fast and perfect useful circles at every use. And perfect circles mean no more wasted wood. PRECISION CUTTING: The SPOT ON circle cutter router guide is computer engineered to ensure perfect circle cutting paths. The router circle cutting jig is perfect for speaker makers, woodworkers, and DIYers. The cutting jig comes with all screw hardware needed to attach securely to router, and pivot and centering pins to ensure perfect circle cutting. Jasper 240 Cuts Perfect Circles from 1 to 18 3/16 D – Jasper Tools The easy-to-use SPOPT ON circle cutter router jig is here to bring you the best solution when you need to cut a perfect circle every time. Discover versatile circle cutting jigs that transform your jigsaws, routers, and circular saws into accurate, repeatable cutting tools 𝐋𝐎𝐍𝐆 𝐋𝐀𝐒𝐓𝐈𝐍𝐆 𝐀𝐍𝐃 𝐃𝐔𝐑𝐀𝐁𝐋𝐄: The SPOT ON circle cutter router jig is made from high-quality, hardened acrylic and built to last.