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Starrett AGD Indicator Hole Attachment
Product ID:
$ 85.00
This hole attachment enables your dial indicator to measure the inner surface of holes just like a test indicator.
Both models have a 0.375" diameter hole to attach to all indicators made to AGD standards. The contact ball end on the swivel arm is 1/8" in diameter.
Model 670A has a measurement range of 0-0.375".
Model 670B has a measurement range of 0-0.5625".