The dewalt 20V max* cordless Cable stapler is built for residential wiring applications, primarily fastening romex brand wires and cables. Made in the USA with global materials, This stapler has a proprietary cable guide that helps to drive staples over cable. The compact frame and lightweight design are ideal for tight spaces. A center-mounted LED light helps to eliminate shadows and illuminate the work area in low light conditions. Compatible with DEWALT Drs1800 1" Insulated cable staples (sold separately). Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18.