Spin Out Tools 4-Piece Dual Tip HSS Damaged Screw Extractor Set with Case Made of High Strength Steel for superior durability and long life of the cutting and gripping edges Features a 2 in 1 drill bit/extractor design compatible with quick chuck systems This set is a "MUST HAVE" tool for all Homeowners, Woodworkers, Mechanics, Artists, Hobbyists, etc. Suggested reading "Father's Day Gift". Works on all kinds of screws and bolts. Works with all drills. Comes with a case and makes a thoughtful gift.