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This lightweight gage is used for in-process or bench inspection of oil grooves, snap ring retainer grooves, O ring seat retainer grooves and similar internal recesses. It is also useful for checking bore dimensions and testing for taper, bell-mouth and out-of-roundness. The movable, sensitive gaging contact has a 1/2 (12.7mm) retractable range and transfers the measurement through a linear, friction-free transfer mechanism to the dial indicator. The lower reference jaw is fixed and supports the entire weight of the gage and the operators hands, thus preventing incorrect gaging pressure and false readings. The reference jaw can be mounted in two positions on the range adjusting bar. The bar itself is also adjustable for greater or lesser range. A fine adjustment screw and a lock are also provided. 9.5-150mm Range with 81-181-624J Indicator in Case A fine adjustment screw and a lock are also provided.
