"Warner 4" Flex Broad Knife is part of DIY Series light-duty putty knife and scraper product line, for light-duty construction or home projects. Carbon steel blade, easy spreading & clean-up. Rust-resistant, polypropylene handle resists thinners & solvents. Hard Rosewood-colored handles are laminated and then pressure treated with resin to be moisture resistant. Provides a flex with the proper stiffness to handle heavy drywall compounds. Use for first-coat applications.