Finally decided I need a DRO on my mill, went the cheap route with a caliper from Machinery Mart.
The nice thing is that you can touch the work piece and then zero the vernier and then drill to a precise depth, something not possible with the oem analog scale.
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Those cheap verniers are remarkably accurate. I have seen several reviews on them and they do the job to unexpected levels of accuracy.
They will be far more accurate and easy to use than the analog scale.
Great hack