House Brand Dentistry Endodontic Reamers 21mm #45-80 Stainless Steel 6/Box. HSB - House Brand Dentistry's Reamers in stainless steel offer exceptional quality for endodontic procedures, featuring a 21mm size, #45-80 specifications. Supplied in packs of 6 for convenience, these tools excel at shaping and enlarging root canals.Designed for rigidity and efficiency, they remove dentin effectively while ensuring optimal control and comfort during use.