Check the listing for details. Kutzall Original Coarse Rotary Burr Set - 1/8" Shaft - 4 Piece. Condition: New. Listed at 64.48 USD. Kutzall Original Coarse Rotary Burr Set - 1/8" Shaft - 4 Piece, 184364, Rapid material removal, Easy to control, Long-lasting, Used for shaping, contouring, hollowing, notching and trimming, Taper (head diameter x head length): 1/8" x 7/8", Sphere (head diameter x head length): 3/8" x 3/8", Ball Nose (head diameter x head length): 1/4" x 1/2", Flame (head diameter x head length): 1/4" x 1/2", Includes: (1) Taper Burr – Coarse, (1) Sphere Burr – Coarse, (1) Ball Nose Burr – Coarse, (1) Flame Burr - Coarse, The Kutzall burrs are designed to provide fast stock removal with an outstanding finish, thanks to exclusive tungsten-carbide coatings that make them the best value in the industry. The 1/8" shaft burrs are used in flex shaft tools, hand grinders, or other machinery using collets or.