The lightweight SLS20HF tongue-and-groove installation stapler drives 1 to 1-1/8 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 (1/4, 5/16, 3/8) and some of the 1/2 flooring brands.