The 7 Scalpel Handle is designed to hold micro scalpel blades for minimally invasive procedures and microsurgery. Blade wrench available (MBW) loosening/tightening micro blade in collet. Hu-Friedy also offers Microsurgical Mirrors used with these handles that allow for ideal access and visibility in all clinical procedures. Search for part codes: MM4, MM5, MM7, MM8. Made with surgical grade stainless steel.