5/16" × ½" round end burr on 1/8" mandrel with 80 (standard) grit - 35,000RPM rated. This tool is ideal for cutting rounded channels in all materials, for dimpling in carving and for drilling round bottomed holes. As with all Dura-GRIT tools the grit will not tear loose and will last a lifetime. The burr can be cleaned with a wire brush, soaked in solvent or even burned with a propane torch, to remove stubborn clogs such as sap, paint or urethane.
$20.00 (includes free postal delivery in Australia)