The Proto Wrench Set is SAE sizes 1/4'' to 3/4''.
Proto Non-Reversible Combination Ratcheting Wrench Set, 9-Pc., Spline, Black Chrome, Model# JSCR-9S

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- Black chrome finish is corrosion resistant and visually distinctive
- Non-reversing ratcheting wrench 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 was created for specialty spline bolts, which are used when weight and size of bolt heads must be minimized
- Spline design enables wrench to contact conventional fasteners away from the corners, which helps apply force over a large area and reduces risk of fastener rounding
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