Circle Perfect Tools Routes Perfect Circles in Plywood
Click on the image to open
This is not an easy way to calculate a circle.
Click on the image to open
Click on the image to open

Circle Perfect Tools in Rancho Cordova, CA  is creating custom tools that designed to quickly and precisely route circular grooves and drill holes in circular patterns. Using a new approach, the tools allow users to easily rotate wood, plastic or other material around a center pin to achieve a precise circular cut, reducing the calculations and potential for error.

“I searched for a long time for tools that I could use to help turn my 2-D drawings into 3-D artwork, but the existing tools fell short of my particular needs, so I designed my own.” said Dennis Ruggiero, inventor and co-founder. “I soon realized I might have something other woodworkers might want and that is why we started Circle Perfect Tools.”

• Circle Guide for Router Table: This tool attaches to a standard router table giving the ability to cut circles from ½ inch up to 39 inches in diameter in increments of a 1/32 of an inch. The tool allows users to lock into pre-defined measurements for precise recall capabilities, as well as supports infinite variability for manual measurement settings. Unlike other circle guides, which require the operator to hold the router in hand and rotate it around the material, this tool allows the operator to rotate the material instead, which greatly improves stability, setup time, and operation.

• Circle Guide for Drill Press: Using the same center pin design, this tool attaches to a drill press and allows the operator to easily and precisely drill holes in circular patterns. Users set the radial distance, drill, and then rotate. Lock into a pre-defined radial measurements for precise recall capabilities, or use infinite variability for manual measurement settings.

• Degree Scale: This tool is used on its own as a compass, ruler, and protractor or used in conjunction with both Circle Guide tools. It can quickly draw circles, mark angles, or be used as a visual guide to access the degrees of rotation when cutting or drilling.

Have something to say? Share your thoughts with us in the comments below.

Profile picture for user billesler
About the author
Bill Esler | ConfSenior Editor

Bill wrote for WoodworkingNetwork.com, FDMC and Closets & Organized Storage magazines. 

Bill's background includes more than 10 years in print manufacturing management, followed by more than 30 years in business reporting on industrial manufacturing in the forest products industries, including printing and packaging at American Printer (Features Editor) and Graphic Arts Monthly (Editor in Chief) magazines; and in secondary wood manufacturing for WoodworkingNetwork.com.

Bill was deeply involved with the launches of the Woodworking Network Leadership Forum, and the 40 Under 40 Awards programs. He currently reports on technology and business trends and develops conference programs.

In addition to his work as a journalist, Bill supports efforts to expand and improve educational opportunities in the manufacturing sectors, including 10 years on the Print & Graphics Scholarship Foundation; six years with the U.S. WoodLinks; and currently on the Woodwork Career Alliance Education Committee. He is also supports the Greater West Town Training Partnership Woodworking Program, which has trained more than 950 adults for industrial wood manufacturing careers. 

Bill volunteers for Foinse Research Station, a biological field station staddling the border of Ireland and Northern Ireland, one of more than 200 members of the Organization of Biological Field Stations.