Features. Size: 38 in. Tungsten Carbide Cylindrical Burr with 14 in. Shank mounted tungsten carbide burrs are double cut for fine work.. Designed for use on ferrous metals plastic fiberglass other machinable materials.. Ideal for deburring sculpting removing material in hard to reach areas.. Designed for use with high speed grinders.. Dimension - 0.07 L x 5.75 W x 1.88 H in.. Item Weight - 0.41 lbs.