NTI Diamond Disc Double Sided Handpiece D946-190 19 mm Each Serrated design to prevent disc clogging. Can be used on moist plaster. Uses less heat for optimum performance. Minimizes risks of fractures. Fabricate, contour, and shape ceramic, zirconium, and other dental restorative materials with NTI Sintered Diamond Disc. Each double-sided disc measures 30 mm in diameter and 0.30 mm thick and has a sintered edge that guarantees stability and high-diamond density. It features a 44.5 mm L x 2.35 mm handpiece (HP) standard length shank for better performance.Utilizing the Unimatrix Bonding process, NTI Sintered Diamond Disc performs with precision and minimal heat, reducing risks of fractures. Available in various grits, sizes, and shapes.Each sold separately.