Proto Box End Wrench Set 54DG36 Ratcheting box-end wrench sets are designed with a 12-point box end and additional grooves that allow for easier connection with the head of the fastener, providing better accessibility at more angles when compared to a 6-point wrench. These double-ended wrenches have different SAE (inch) sizes on each end for use on two different-size fasteners. The ratcheting box ends are equipped with a gear mechanism that enables the wrench to rotate freely in one direction without the need to remove the wrench head from the fastener and reposition it. Material / Alloy Steel Finish / Chrome Insulated / No Number of Tools / 5 Range of Head Sizes / 1/4 inch to 7/8 inch Head Offset Angle / 25 ° Container Type / Canvas Pouch Measurement Type / SAE Head Size / 1/4 inch; 5/16 inch; 3/8 inch; 7/16 inch; 1/2 inch; 9/16 inch; 5/8 inch; 11/16 inch; 3/4 inch; 7/8 inch Head Type / Offset Box End Type / 12-Point Box End Tether Style / Tether Capable Nonsparking / No Non-Magnetic / No Corrosion Resistant / Yes Wrench Shape / Straight Wrench Length Style / Standard Ratcheting / Yes Reversing / Yes Number of Points / 12 Single End/Double End / Double End Container Color / Black Handle Type / One Piece Grip Style / Plain Handle Color / Silver Standards / ASME B107.100-2024