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Hand drills used during orthopedic surgical procedures involving the bones. These devices consist of a manually propelled or powered (e.g., electric, pneumatic) instrument that typically includes a chuck and other detachable components such as drill bits and reamers; some bone drills are used with special guides and/or over a guide wire. Manual hand drills may include an integral drill bit for a particular use (e.g., intramedullary reaming); battery operated electric drills provide autonomous operation without connection to external power sources. Bone surgical hand drills frequently include special guides and/or work over a pin or guide wire (i.e., cannulated hand drills); they are used for a variety of purposes, including placement of implants and implantable prostheses and the fixation of bones using plates, bolts, pins, and other components.
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