Specifications: 7/16, 7/16", 7/16-20, 7/16"-20 - Closed end spline bulge acorn style lug nut - 60 degree cone seat - Tool- 3/4" & 13/16". Always hand tighten spline lug nuts with two hands, one to hold and turn the wrench and the other to support the lug nut tool, improper upward/downward force along with the rotational torque from tightening the lug can cause the tool to break.
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