"Opti-Grip Socket Extractors are designed to replace standard extraction sockets","With improved performance and increased durability, Opti-Grip socket extractors can tackle the most heavily damaged bolts that standard extraction sockets would struggle to remove","Unique Bi-directional design for loosening and tightening damaged fasteners","Patented and non-tapered geometry enables complete contact with the fastener sidewall","Designed to grip up to 100% round Bolts, Nuts, Studs, Socket Cap screws, Button Head screws, Threaded Pipes, Lug Nuts,Grease Nipples \u0026 MORE.","Intuitive and Practical Design - Simply select the correct size applicable to the bolt or Stud ect being removed and HAMMER into place","F.O.R.S. pusher rod provides quick and easy removal of extracted object from socket cavity","Formed from premium Cr-Mo steel for increased strength and durability as well as coated for increased corrosion resistance","OVERSIZE laser marked sizing details for greater visibility","Dual Drive Versatility - Traditional internal square drive for most jobs while external hex design allows for pliers wrenches or other drive tools to be used.","External Hex design also allows for larger size sockets to used on exterior when additional torque is required","Hand and Impact ready 3/8" DRIVE 12 MM OPTI-GRIP SOCKET EXTRACTOR BP12MOGX | Matco Tools