BOLT BITER 7 Pc. Rescue Extraction Sockets w/Adapters Tapered Entry: Enables Socket to Easily Seat on a Damaged Fastener. Bi-Directional Design: For Removing and Tightening Damaged Fasteners. Black Oxide Finish: Provides Superior Corrosion Resistance. Made from Chrome Molybdenum: For Exceptional Strength and Long Lasting Durability. Square Drive with Hex Base: For use with Impact , Ratchet, Wrench, or Pliers. Includes SAE Sizes:. 1/4”, 5/16”, 3/8”, 7/16”, 1/2”, . Metric Sizes. 8mm, 10mm, 12mm, 13mm, 14mm 87911