Arrow Fastener T25 Low Voltage Wire Staple Gun, Fits up to 1/4-Inch Wires N/A Made in USA Cushioned grip Jam-proof mechanism Easy squeeze double-leverage operation Grooved driving blade halts staple at right height to prevent wire damage and short circuits For wires 5/16 inch (8mm) Designed for safe, fast, and efficient low-voltage wire-fastening For use with T25 staples size 3/8-inch, 7/16-inch, and 9/16-inch All-steel construction Durable chrome finish Grooved driving blade Jam-resistant mechanism Tapered striking edge gets into close corners Made in the USA