Gray Tools MC65B 65mm 12 Point Combination Wrench

What this wrench fits

The Gray Tools MC65B is a 65 mm combination wrench with a 12-point box end. Precision broaching gives a tight, secure fit on hex fasteners, and the black oxide finish resists corrosion. It meets ANSI standards for professional automotive and industrial use.

Installing and common issues

Slip the open end or box end onto the fastener and apply steady torque. The 12-point geometry engages in more positions than a 6-point, which helps in tight clearances. The most common issue is rounding the fastener if the wrench is not fully seated or if excessive force is used on a seized bolt.

Check your fastener and space

Verify the bolt or nut you intend to turn measures exactly 65 mm across the flats. Confirm you have enough swing radius for the wrench length in the work area. Ensure the black oxide finish is acceptable for your environment, as it is not a chrome-plated surface.