Aluminum Oxide (A/O) mineral is friable, breaking down to reveal sharp cutting edges and producing a consistent cut|Tapered points attach to a range of different-sized mandrels|Conical shape and pointed end help abrasive effectively deburr holes and internal diameters|Enables users to access hard-to-reach areas and internal diameters for more precise grinding, as well as deburr holes in the workpiece|Can attach to mandrels of varying lengths to match the application