FG #SH 135 F 16 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 300,000 rpm. 16 Blades: Fine finishing. Package of 3