Surgical instruments and apparatus, namely, reamers, hemispherical reamers, conical reamers, reamer handles, adapters and spare adapters for use with reamer handles, power tools, drills and other related drive shafts, covers for acetabular reamers, straight and flexible, cannulated and noncannulated intramedullary reamers, reamer guide-wire, drills and taps, screws, angeled drivers, hand-held instruments, namely t-bars, straight and flexible quick-connect shafts and handpieces, AO (Association for Osteosynthesis) hand pieces, AO (Association of Osteosynthesis) hand pieces, AO (Association of Osteosynthesis) t-bars, flexible shafts for drills, taps and screwdrivers; bayonet tools, screwdriver heads, screwdrivers, external fixation pins, adjustable drill guides, plates, saw blades, trocars, drill guides, chucks, bone chisels, retractors, forceps, metal and plastic sterilization trays