5- and 16-gauge staples from 1 to 2 inches, and "L" cleats from 1-1/2 to 2 inches, the magazine has a 100 staple/cleat capacity. 5 and 16 gauge staples ranging from 1 to 2 inches, and "L" cleat ranging from 1-1/2" to 2". The patented design of the Ramsond RMM4 Two-in-One Hardwood Flooring Stapler and Cleat Nailer lets you shoot both staples and cleat nails from the same gun--without changing magazines. The Ramsond RMM4 2-IN-1 flooring stapler & cleat nailer combination is another testament to the recognition that Ramsond tools now enjoy. Have installed alot of 3/4" 2-1/4" plank oak flooring with it so far, have had 1 misfire. The Ramsond RMM4 operates with the power of compressed air (60 - 120 PSI) and is equipped with a standard 1/4-inch NPT air inlet for easy compatibility. Powered by compressed air, this tool features patented air booster chambers for maximum driving force and speed. This dual-purpose tool has a patented two-in-one magazine and driver system that accommodates both cleats and staples. With over 30,000 units sold in North America, the RAMSOND (R) RMM4, patented combination 2-in-1 hardwood cleat nailer and stapler is an engineering marvel. To use, simply attach your air compressor's hose to the RMM4's air inlet, then rest the nose of the RMM4 squarely against your work surface to fire. The 2-in-1 magazine has a capacity of 100 staples/cleats. This ergonomically designed multifunctional tool is manufactured under the strict ISO guidelines for quality control.