Profile: Cogsdill Enterprises, Inc. is a developer and patent holder of the Burr-Zit de-burring tool. Our burr-zit tools can de-burr both sides of a drilled, punched or reamed hole in one operation, even when only one side is accessible. The handi-burr tool is for hand held or medium production for deburring front and back side or back side in a single pass.