About this item ASTENER EASY OUT - Take out various stuck screws by two steps within 10 secs. Use proper size drill bit to bore a hole on screw head, then reverse the remover counterclockwise into the damaged screw until it is released POCKET SIZE PORTABLE SET WITH CASE - Come with a clear lid compact organizer box for easy carrying. Extractor tool duty scopes are clearly relief printed on the storage case bottom AWESOME GRUB UP ABILITY - Aggressive left hand spiral tip design will embed the extractor into the damaged screws for resistance increase, get extra gripping power for easier removal UNIVERSAL ADAPTABLE USE - Square end design allows the extractor to work with Wrenches, Pliers, Tap Wrenches or Die Stocks for easy operating. Perfect for all homeowners, woodworkers, mechanics, artists, hobbyists etc 6 PCS WIDE APPLICATION - Fit for extracting 1/8 to 1 inch (1/8"-1/4", 1/4"-5/16", 5/16"-7/16", 7/16"-9/16", 9/16"-3/4", 3/4"-1.0") stubborn, rusted, cracked, damaged or stripped screws, studs, bolts, fastener or nut, etc