I bought this 12" DRO from Amazon to mount on my MM J/P. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 As far as I can see the sliding sensor only has two tiny little threaded holes in the side opposite the wire side. Does anyone know what screw size fits into those holes? 4/40 is about the right size, but don't fit so they are likely metric.

If you have one of these, did you use those holes to mount the sensor to the planer table, or did you fabricate some other way to mount the sensor? Any help is appreciated before I try to design something.

Thanks.

John