Hitachi NT65MA4 15-Gauge Angle Finish Nailer (Certified Refurbished) 360 Degree adjustable exhaust directs air away from user Integrated air duster: Clear away debris and saw dust with the on-board air duster Tool free depth adjustment provides simplicity and flexibility when fastening various types of wood. Selective actuation: A simple flip of the switch allows for either sequential or contact nailing. No additional parts or tools required. Easy clear nose: Should a nail jam, the easy clear nose provides easy access to minimize disruption.