FG #SH 133 8 Blade CTF Carbide Finishing Burs 3/Pk. For Cosmetic Trimming & Finishing. Designed with a safe end tip to trim and finish subgingival cosmetic restorations. High quality tungsten carbide finishing head on a stainless steel shank. Maximum speed 450,000 rpm. 8 Blades: Rapid Trimming and Contouring. Pack of 3 burs