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MMR diaphragms are used with SMR series top jaws which are bolted on from the rear of the diaphragm. This eliminates the possibility of having an interrupted clamping diameter since there are no counterbored mounting holes in the top jaws. MMR diaphragms are also available in 2, 3, and 8 jaw configurations.
MMR Diaphragms
Unit of Measure
1 

Model

Chuck Size

No. of Jaws

Diameter

Height

MMR-80-6 N/A 3 in81 mm N/A 6 N/A 3.19 in81 mm N/A .63 in16 mm
MMR-100-6 N/A 4 in102 mm N/A 6 N/A 4.02 in102.1 mm N/A .71 in18 mm
MMR-125-6 N/A 5 in127 mm N/A 6 N/A 5.00 in127 mm N/A .71 in18 mm
MMR-150-6 N/A 6 in152 mm N/A 6 N/A 5.98 in152 mm N/A .70 in17.7 mm
MMR-200-6 N/A 8 in204 mm N/A 6 N/A 8.03 in204 mm N/A .69 in17.5 mm
MMR-250-6 N/A 10 in254 mm N/A 6 N/A 10.00 in254 mm N/A .87 in22 mm
MMR-300-6 N/A 12 in294 mm N/A 6 N/A 11.57 in293.9 mm N/A 1.02 in25.9 mm
Unit of Measure
1