Debur holes that intersect within your workpiece (cross holes) while protecting internal surfaces. With a ring around the cutting face, these burs slide toward cross holes without nicking or gouging walls along the way. The shanks are longer and thinner than standard burs, so these burs reach deep into workpieces while remaining flexible enough to clean up the entire edge of the hole. However, they’re still rigid enough that they won’t wobble as they rotate. The end of the shank can flex out as far as the bur's head diameter, but no further.

Mount these burs in your CNC machines to debur material as part of your automated workflow. Like end mills, they fit into the CNC machine’s tool changer, so you can swap them out throughout the machining process. Alternatively, you can also attach these burs to electric rotary tools for manual deburring. However, they’re not compatible with air-powered tools. To avoid injury, don’t turn your tool on before you insert it into the bore of your workpiece.