Dynabrade 94990 1/4" Female Composite-Style Coupler with 1/4" Male Plug Assembly 
Insize 4726-1E, CONCENTRICITY GAGE, .118″DIA-1.575″DIA, 6928640380693
$6,617.63
With ball bearing, high stability, long working life.
Accuracy .00008″.
Optional accessory: dial test indicator
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