The Grey Pneumatic 3526S is a professional-grade 3/4-inch drive x 13/16-inch 8-point standard length impact socket designed for high-torque automotive and industrial applications. Key Technical Specifications Drive Size: 3/4" square drive Socket Size: 13/16" with an 8-point configuration Dimensions: 1.65" outer diameter (both ends), 1.97" overall length, and 0.59" hex depth Material: High-quality Chrome-Molybdenum (Cr-Mo) alloy steel Finish: Industrial black oxide to resist corrosion