Features and Benefits:•Cuts through plastic quickly or easily.•Fits Dremel tools.This cutting burr has a rounded profile to remove plastic quickly along the crack line in a broken plastic part. 1/8th inch diameter shank for electric die grinders. This high-quality, versatile cutter made from high-grade steel, is ideal for shaping, hollowing, grooving, slotting, inlaying and making tapered holes in plastics and wood, especially on curved surfaces.