The original adjustable wrench， made by Crescent brand. Laser etched scale in both SAE Standard and Metric sizes allows easy identification. Larger knurl for easy adjustment ensures a tight jaw fit. Hex jaw design reduces slippage by stripping fasteners tightly. Tension spring stabilizes jaw and allows easy knurl adjustment. Heat treated forged alloy steel for toughness and durability. Chrome-plated finish wipes clean easily and resists rust and corrosion. Polished head and satin finished handle.