Made from high-density chrome-molybdenum steel for superior strength and durability. Each is clearly labeled for easy reference and organized in their blow-molded carrying case for easy storage or transport between jobs. These bolt extraction tools easily pry off rusted, stripped, and frozen fasteners, working with manual and power tools with 3/8-inch drives including impact wrenches, air ratchets, and breaker bars. For easy removal of rounded-off, rusted-tight or painted-over bolts Bolt nut remover processed from high hardness chrome-molybdenum steel The 6-point design with spiral fluting provides maximum grip and torque 3/8-In square drive for use with hand ratchets, impact wrenches, and air ratchets Hexagonal flats for use with flat wrench, pliers, adjustable wrench, sockets, or locking pliers Plastic carry case included Sizes: 3/8-in and 10-mm, 7/16-in and 11-mm, 1/2-in and 13-mm, 9/16-in and 14-mm, 5/8-in and 16-mm Drive Size: 3/8-in Adaptor Included: No Case Type: Hard Deep Well: No Impact: Yes Material: Chrome moly Measure Type: Metric and standard (SAE) Package Quantity: 5 Rail Included: No Set/Individual: Set Brand/Model Compatibility: universal Warranty: Limited lifetime CA Residents: Prop 65 Warning(s): Yes UNSPSC: 40102000