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High quality 4.00" wide dial indicator base attachment. Fits any AGD indicator with 3/8" stem.
Bore Gage .0005 Graduation | 2.00" to 6.00"diameter | Simple and easy to use.
Bore Gage .0001 Graduation | Check bore diameter for wear, taper or out of round conditions.
Precision quality 4.00" base attachment and dial indicator set.