The last screwdriver set you'll ever need, the Wheeler 89 Piece Professional Gunsmithing Screwdriver Set has it all. Unlike other screwdriver suppliers, Wheeler's engineers measured the screws on over one hundred modern and antique firearms to make sure that we offered bits for every situation. Whether you are working on a Browning Superposed, a Remington 700, a Smith & Wesson revolver or a Colt single action, you will find that there is a bit to fit every screw on your gun. Features: Hollow-ground flat bits create precise fit to prevent damage to screws and firearms Includes short and extended drivers with textured rubber handles for enhanced comfort and grip Bits are coated in black phosphate to prevent rust