you will need to remove w/ a impact style phillips ( 3/8 style handle you hit with a hammer). as you hit the handle turn the screw, you will strip all of them if you try to just remove. Those screws are factory installed w/ loctite. You also need to insure you install them w/ loctite. Common rookie mistake is to just tighten, resulting in the common loss of 2 or 3 or all 10.