Eazypower 88256 Two-Inch Get It Out One Way/Rounded Screw Remover, .684-Inch #18
The One Way Screw/Rounded Bolt or Nut Remover makes removing stripped bolts and nuts as easy as 1,2, 3!  1. Loosen set screw to adjust tip depth.  2. Align and seat tip into screw head/bolt. Slide collar flush with surface, tighten set screw.  3. Apply pressure while removing or installing One Way Screw or Rounded Bolt.