Proto JSBV0810 Black Chrome Double Box Reversible Ratcheting Wrench 1/4" x 5/16" - Spline

The chrome-vanadium switch lever allows for easy changes in turning direction which helps improve efficiency.Ratcheting spline box end is chamfered for easy application to the fastener.Spline design enables the wrench to contact conventional fasteners away from the corners, which help apply force over a large area helping to reduce risk of fastener rounding.Spline design also helps prevent rounding of corners and other fastener damage that could lead to Foreign Object Damage (FOD).Spline wrenches can be used on fractional 4, 6, 12 point and spline fasteners.