MM EGR 20-22 clamping key is supplied with each MM GRT... shank, tightening torque: 1500 N.cm. MM GRIT 28 clamping key should be ordered separately, tightening torque:2800 Nxcm. For clamping instructions, click on "More Info". Modification options on request. Recommended for O-rings and retaining rings. Do not apply lubricant to the threaded connection.
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