Medical surgical apparatus and accessories, namely, surgical pneumatic motors, surgical electric motors, cutters, saws, blades, craniotomes, cutting burrs, attachments, namely, speed reducers for reducing motor speed, burr guard, attachments, namely, angle attachment, saw attachment used with the surgical pneumatic and electrical motors for performing surgical procedures, chuck systems assembly, chuck drive system used for attaching surgical instruments to the motor, autolobe for lubricating surgical motors, powered kerrison system comprised of motors and bone cutting instruments, micro dissection for inner ear surgery