Shop the DEWALT P1000 Tool (Powder-Actuated) - Tools, P1000 Tool - .22 Caliber, low-velocity, single shot, hammer-fired DIY tool. The P1000 Tool is a hammer-fired, low velocity, single shot, .22 caliber, do-it-yourself powder-actuated tool engineered for high reliability, low maintenance, and speed. Powder-actuated tools may be used only by properly trained and licensed operators per ANSI Standard A10.3.