Standard Abrasives 541152, Quick Change TS P.A.R.T. #30 Disc Mandrel, 5/8 in TA4 (PILOT), 7000121724 
Insize 4209-6, LONG HANDLE TELESCOPING GAGE, 3-1/2 ~ 6″, 6928640311581
$16.55
For quick measurement of inside diameter of deep holes and width of slots.
Satin chrome finish.
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