Lathe centers, chucks, and jaws center and support workpieces between the headstock and tailstock to provide accurate milling. Live centers have a point that rotates with the workpiece as it turns to minimize friction between the centers and the workpieces during high-speed turning applications. Dead centers support workpieces in low-speed milling operations to ensure concentric milling. Lathe jaws attach to the chuck to clamp parts securely in place. Lathe chuck jaw nuts slide into the master jaw on the chuck body to secure lathe jaws in place.