16-Piece Metric Crowfoot Wrench Bit Sets, Metric, 3/8 in Drive

Crowfoot wrenches are used in hard-to-reach, restricted access situations where a standard wrench or ratchet cannot reach. Anti-Slip Design open end (ASD). The arched surfaces are designed to spread the contact forces over a greater area and they keep the loads off the corners of the fastener which helps prevent fastener rounding. Broad size range ensures the right tool for the application will be available. Typically used in lower torque applications.