b'Tools and techniques are shared to eliminate burrs under a machining saddle.By Kip Hanson little that any skilled machine operator cant deburr.J ust as holemaking is common in metal- However,thesetraditionaldeburring working, so is deburring the tops and bot- methods are slow. Features that cant be toms of produced holes. Chamfering toolsreached while in a machinewhich is often are effective, as are the familiar Rotoburr- much of a partmust be manually scraped, style scraper blades. These tools also deburrbuffed and chamfered. If an operator isnt machined edges fairly well and, given thepaying attention, a machine tool might sit right extension or blade geometry, can ac- idly while he or she is busy deburring parts. cess hard-to-reach areas deep inside parts.And a bit too much pressure with a grind-Add a few Scotch-Brite pads, a drill pressing wheel or blade could mean the inadver-and a bench grinder to the mix, and therestent scrapping of a completed, possibly very 30MARCH 2020Deburring.indd 30 2/14/20 3:16 PM'