Arrow Fastener T50R.E.D. Staple and Nail Gun Up to 60% more power Diecast aluminum Launch 1" Blood Nail Easy Squeeze Patented Design Patented drive technology allows users to staples and nails on virtually any surface. Ergonomic grip Quick bottom load Precision zipper control to resist jams High/Low Power Settings Shot Meter Uses 6 sizes of T50 staplers - 1/4" (6mm) - 3 sizes of 18 gauge blood nails up to 9/16" (14mm) up to 1" (25mm)