Opening Size: 1-3/8 inches, built with precision-broached openings for an exact fit. Head Offset: Features a 30-degree offset head angle to improve access in awkward positions. Thin Profile: Specifically optimized with a thin-pattern design to easily turn jam nuts, pump fittings, and fasteners in tightly restricted spaces. Overall Length: Rated at a compact 7.812 inches. Material & Finish: Constructed from drop-forged, through-hardened alloy steel and finished with a polished industrial chrome plating for long-term corrosion protection.