Snap-On FC64A Open-End Crowfoot Wrench

Snap-On FC64A Open-End Crowfoot Wrench is a 3/8-inch drive, SAE-series tool with a 2-inch crowfoot opening, designed for fasteners that sit behind obstacles or in cramped spaces where a conventional socket or box-end wrench cannot reach. This model belongs to Snap-On's FC open-end crowfoot family, which includes FC50A through FC96A variants in 3/8-inch drive configurations, all engineered to mate with a standard 3/8-inch drive ratchet for side access. The 2-inch opening corresponds to SAE fasteners sized 2 inches across the flats, making FC64A appropriate for servicing components with that fastener size in automotive and machinery contexts. The open-end crowfoot design provides a flat seating surface and a broad contact area that helps distribute load along the fastener, reducing rounding and enabling work where space is restricted and a straight wrench can't be used. Typical applications include automotive service tasks where fittings or nuts are recessed or obscured, such as behind components in engine bays or within compact assemblies.