* Magnetic base with upright base post, snug with two 1/4" holes, rod, indicator attachment, and snug with 3/8" diameter post hole and 1/4" diameter gripping hole * Push-button on/off switch for one-hand operation * Base has three precision ground magnetic contact points * Black wrinkle finish on non-working surfaces Test Indicators cannot be used without proper holders. The 657AA is for use with all Starrett Test, AGD, Dial and Minature -Dial Indicators. Also accomodates similar indicators of other manufacturers. (please look at our rules and privacy policy) |
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