Wheeler Engineering Professional Gunsmithing Screwdriver Set Hollow-Ground Flat Bits Short/Extended Drivers Texturized Rubber Grip Black Phosphate. Unlike other screwdriver suppliers Wheelers 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 and Wesson revolver or a Colt single action you will find that there is a bit to fit every screw on your gun. Specifications for Wheeler Engineering Professional Gunsmithing Screwdriver Set: Manufacturer: Wheeler Engineering Color: Black/Gold Quantity: 89 Features of Wheeler Engineering Professional Gunsmithing Screwdriver Set 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; Package Contents: Wheeler Engineering Professional Gunsmithing Screwdriver Set Bits And Drivers Molded Organizes Case Wheeler Engineering 4001008: Professional Gunsmithing Screwdriver Set Hollow-Ground Flat Bits Short/Extended Drivers Texturized Rubber Grip Black Phosphate 89-Pack