Attributes . 5 Piece Carbide burr Set, SA-43 Carbide Double Cut Cylinder Burr with Flat End (9/16 in Flute Length), SC-42 Carbide Double Cut Cylinder Burr with Radius end (9/16 in Flute Length), SD-42 Carbide Double Cut Ball Burr with Flat End (1/8 in Flute Length), SF-42 Carbide Double Cut Tree Burr with Round End (1/2" Flute Length), SL-42 Carbide Double Cut Tapered Cone (8 Degree ) Burr with Round end (1/2 in Flute Length) . Names