DRS18100 1" Insulated Cable Staples are designed for use with the DEWALT DCN701 Cordless Cable Stapler. They 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 are compliant with the National Electrical Code. These staples can also be driven manually with a hammer for applications in tight spaces. Refer to the UL approved cable combinations chart for specific cable approvals.