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" insulated cable staples (sold separately). The DRS18100 staples are UL® listed (406A) for common Romex® (NM Sheathed Cable), and MC (Metal Clad) cable applications*. The staple crown is plastic insulated and these fasteners adhere to the National Electrical Code®. These staples can also be driven manually using a hammer for tight space applications. *See UL® approved cable combinations chart for specific cable approvals.*Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18.