Saburr Tooth burrs from America are a revelation in sculpting, shaping or smoothing wood, fibreglass, rubber, foam or silicone. They are very durable and aggressive but controllable and resistant to clogging. Long lasting, razor-sharp carbide cutting teeth are arranged into a unique open pattern to resist loading while providing the Power Carver rapid stock removal and smoother finishes. They are available in many shapes, sizes and grades to suit your carving, grinding, cutting and machining needs. These 50mmø x 9.5mm (3/8") bore discs have a rounded convex face and would be suitable for shaping a variety of materials. For safety, always use approved eye protection and recommended safety devices. Please note: not suitable for use on metals or ceramics.