DeWALT 9R192305 Lock Lever  Keep your tool locking mechanism working like new with this genuine OEM lock lever. It’s a direct-replacement part used on select DeWALT/Stanley Black & Decker/BOSTITCH models to restore smooth, positive engagement; for example, it fits the BOSTITCH GBT1850K Nailer (Type B). Always confirm compatibility with your tool’s parts diagram.