The Senco professional-grade, mallet-actuated hardwood flooring stapler provides 547 inch-pounds at 100 PSI. It uses 1-in. to 2-in. 15.5 gauge ½-in. crown staples with a magazine capacity of 102 fasteners. It’s designed to be comfortable to use while providing increased control. The tool-less non-marring base plate also makes alternating between ½-in. and ¾-in. flooring thicknesses quick and accurate. Users simply lift and rotate the base and release to lock it back into place. With the plate resting squarely against the surface, the tool is perfectly placed above the tongue on the floorboard so the direction and angle of the staple is automatic.