For wires up to 1/4" diameter. Specifically designed for safe, fast and efficient low voltage wire fastening. Tapered striking edge gets into close corners. Grooved guide positions wire for proper staple envelopment. Grooved driving blade halts staple at right height to prevent wire damage. Round crown staple fits snugly around wire. Widely used in telephone, electrical, electronics and communications fields. All-steel with chrome finish. Loads (85) T25 staples with 1/4" crown-divergent point of .050 wire in 9/32", 3/8", 7/16" and 9/16" leg lengths. Use with: 415.8796, 415.8812 or 415.8846 staples. Boxed.