Strauss Diamond’s 856/018PF trimming and finishing burs feature a special new grit that allows fast adjustment on Zirconia or Alumina coping. This is done without risk of micro fractures in the frame, and allows a very fine finish without scratches. The 856/018PF has demonstrated excellent results on Lava™, In-Ceram®, Procera® and Vita® ceramic crowns. For the first time, labs are able to trim Zirconia as easily as composite. The bur has a head length of 8mm, a head size of 018, and comes in packs of 6.