Reversible-Ratcheting Combination WrenchVersatile wrench allows you to do more with less. High-quality ratcheting box mechanism may be set to tighten or loosen fasteners at the flick of a switch. Open end features a smooth, low-profile design. Size-mark stamp simplifies tool selection. Wrench Type: Ratcheting Combination; SAE/Metric: SAE; Opening Size(s): Assorted; Opening Type: Box/Open End.