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 DRS18100 1 in. insulated cable staples (sold separately). Maximum initial battery voltage (measured without a workload) is 20V. Nominal voltage is 18V.