Eagle Tool US is proud to announce our newest line of flexible installer bits. The switch bit line offers interchangeable head styles and various shank lengths so you can quickly customize your set for any application or situation. Starter combo packages include an interchangeable head with a removable 33-inches flexible spring steel shank. Application: wood. Easily removable for sharpening. Aggressive and self-feeding screw point. Nickel flash finish for faster drilling speeds and less binding. Wire fishing accommodation holes in the head and in the three flat non-slip grip. 3/8-inch head diameter. 3/16-inch shank diameter.