The Crescent X10 9-Piece SAE Long Pattern Combination Wrench Set (CCWS9BS) is engineered for superior strength, durability, and performance in demanding professional environments. Constructed from specially formulated, heat-treated Crestoloy alloy steel, these wrenches deliver exceptional torque and long-lasting reliability. Designed for mechanics, technicians, and serious DIY users, each wrench features a corrosion-resistant black manganese phosphate finish, a long-pattern body for increased leverage, and precision-machined ends that provide excellent fastener engagement. ? Features Benefits ? Superior Strength Durability Made from Crestoloy alloy steel, specially formulated and heat-treated Withstands heavy use in shops, job sites, and industrial environments ? Extreme Corrosion Resistance Black manganese phosphate finish protects against rust Smooth ground surfaces reduce friction and enhance tool life ? Off-Corner Loading Technology Box-end is engineered to engage the flats of the fastener, not the corners Reduces rounding and increases fastener life Provides better control under torque ? Professional Long-Pattern Design Extended length provides greater reach Offers improved leverage for stubborn or recessed fasteners ? 15 Offset Box End Adds knuckle clearance in tight or obstructed areas Ideal for working around hoses, manifolds, brackets, and hardware ? Anti-Slip Open End Open-end design improves gripping strength Prevents slipping and enhances turning efficiency ? Easy Size Identification Large stamped size markings offer fast, easy readability ? V-Rack Wrench Holder Included Keeps wrenches neatly organized Portable and toolbox-friendly ? Professional-Grade Performance Exceeds ASME performance specifications Built for use in tough conditions?work trucks, factories, job sites, and garages ? About the Crescent X10 Line Crescent?s X10 family represents their newest generation of premium mechanics tools. Designed for professionals who work in the harshest environments, Crescent X10 ratchets, sockets, and wrenches offer precision engineering, rugged durability, and dependable performance day after day. These tools are built to help you work smarter, faster, and stronger.