Pneumatic Staplers at Lowes- pneumatic box stapler gun reviews ,20-Gauge 3/8-in Crown Air-Powered Pneumatic T50 Stapler for Upholstery and Woodworking. Model #61705. Find My Store. for pricing and availability. 50. Metabo HPT (was Hitachi Power Tools) 16-Gauge 7/16-in Medium Crown Construction Pneumatic Stapler. Model #N5008AC2M. Shop the Collection.Pneumatic Carton Stapler,CS | StaplesMarkwell Pneumatic carton stapler is ideal for medium use and seals 50 - 200 cartons per day. Stapler features one-hand operation for ease of use and can adjust depth to dispense both 5/8 as well as 3/4 staple leg lengths. Suited for medium volume use, seals 50-200 cartons per day. Easily adjusted to dispense 5/8 and 3/4 staple leg lengths.