MDX Head Wrench

This is a Head Wrench to fit the Retaining Ring and High/Low Switch Ring in the MDX Head. There are 2 drive styles available: Standard:  Simply slip a suitable rod or screwdriver through the hole to gain leverage for tightening. 3/8" Hex Drive:  Any 3/8" socket should work to drive this. CAUTION! Do NOT Exceed 80 ft-lbs of Torque. You Will Ruin the Ring and Your Head! 50 to 60 ft-lbs is Generally Sufficient. Do not attempt to use an impact driver unless you are familiar with using one. It is easy to over torque.