Uniquely designed screwdriver and impact driver in one Fits #2 Japanese Industrial Standard (JIS) and US Phillips screws Proprietary cam mechanism rotates the shaft 12 degrees with each hammer strike Magnetized black coated tip Comfortable handle made of both hard plastic and soft elastomer Slip-proof handle provides 26-Degree higher torque than standard screwdrivers when used with oil covered hands. Tang-Thru design incorporates a metal cap that prevents handle damage when striking with a hammer.