The lightweight SLS20HF tongue-and-groove installation stapler drives 1in. to 1-1/8in. staples at a perfect 45 angle every time and virtually eliminates tongue splitting and floor surface damage. Its front block easily adjusts for different floor thicknesses, while the industry-exclusive safety ensures accurate staple placement. This tool installs pre-finished tongue-in-groove products (1/4in., 5/16in., 3/8in.) and some of the 1/2in. flooring brands.