21621 Opening Size: 1.12" Features: -Wrench.-Material: Drop forged carbon steel.-Heat treated and chrome plated.-Precision machined 15 degree open and 12 point box ends.-Meet or exceed ANSI specidication B107.6 and b107.9.- Color/Finish: -Finish: Polished mirror and chrome plated. Dimensions: -Product weight: 0.07 - 1.85 lbs.