hand tools handbags gears jewelry clutches incremental encoder purses motors sensors optical sensors engine suspension conveyor chain machining cad couplings drills brake clutch mailing address fabrication milling absolute encoder machine shop driveshafts driveline cars cutting tools cnc machining encoder responsibility carbide coaching cutting driveshaft mufflers indexing gear boxes roller chains drill photoelectric sensors blades brakes alignment chains cnc bracelets position sensors po box abrasives earrings