10 Piece Spline Non-Reversing Combination Wrench Sets, Metric

Features: Black chrome finish is corrosion resistant and visually distinctive | Non-reversing ratcheting wrenches can be flipped over to turn the fastener in the opposite direction | Ratcheting spline box end is countersunk for easy application to the fastener | Spline design also helps prevent rounding of corners and other fastener damage that could lead to Foreign Object Damage (FOD) | 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 was created for use with specialty spline bolts which are used when weight and size of bolt heads must be minimized