Seized or stripped bolts and screws are a common problem that can be a hassle to remove without the right tools. Drilling, tapping and extracting makes for easy removal if you have the Powerbuilt 10 Piece Drill and Screw Extractor Set. This set features strong 5 HSS roll forged drill bits with a black finish and 5 milled screw extractors to bite into the stuck fastener. Drill sizes include 5/64 inch, 7/64 inch, 5/32 inch, 1/4 inch, and 17/64 inch. The 5 milled screw extractors size include #1, #2, #3, #4, and #5.