Anti-tilt device to prevent screws from swaying Dust proof construction Silent clutch Maximum drywall screw 4mm x 55mm Screw range 25mm to 55mm 1 year manufacturer warranty with a further 2 years when registered within 30 days of purchase. This guarantee does not apply where non-genuine or recommended parts or accessories are fitted to the tool. The use of non-genuine or compatible batteries and chargers with Makita Tools will invalidate the Makita guarantee for our tools., Weight: 4.629707502 pounds, Manufacturer: Makita