VIAIR RV Winterization Kit Pneumatic Tools Internal parts last longer and Internal parts last longer and the inside of the tool is kept clean Beefed up contact arm provides greater protection from the breakage due to nail jams and accidental dropping of the tool Heavy duty driver blade Anti double fire nose prevents a 2nd nail from accidentally being shot when the 1st nail is firmly pressed up against the wood surface Anti dry fire mechanism senses low nail level to prevent damage to the tool from dry firing Precision placement nose exposes the nail tip to allow the precise placement of fasteners into the connector holes A built in rain gutter and automotive bulb seal work with the 3 point locking ) 6 in Manufacturer Warranty 1 Year Manufacturer Warranty For more information