Bostitch 3-1/2-in 21 -Degree Pneumatic Roundhead Framing Nailer

3-1/2-in 21 -Degree Pneumatic Roundhead Framing Nailer. 2-QUICK CHANGE NOSE PIECES: To convert tool to either framing or metal connector applications. INCLUDES FACTORY-INSTALLED SEQUENTIAL TRIGGER AND EXCLUSIVE SMART TRIGGER. PATENTED PUSH BUTTON ADJUSTABLE DEPTH GUIDE: Sets nail to desired depths quickly and conveniently