iGagingDigital Electronic Height Gauge with Magnetic Base, 6 Inch

I bought these for general use in woodworking but needed it specifically this week for marking/scribing a project requiring precise symmetry. I was able to achieve perfect results with this. Some reviews make the comment about difficulty with adjusting the gauge to the thousandths place. I agree that it would be an improvement to have a little adjustment wheel like the calipers but it's not such a big deal I would ding my 5-star rating. I didn't really struggle making minute adjustments as I just use the pinch method to nudge it where I need. Squeeze just above or below the indicator body such that your fingers are in contact with the body and the rule. When you squeeze a little harder, your fingers will smoosh outward some, providing a soft, very controllable nudge to the gauge. Took just a few seconds to dial in a perfect thou measurement.I chose the iGaging over some other brands because their gauge block is flat sided and will allow me to lay the tool on its side for measuring spacing between a fence and a bit/blade. I also just like iGaging's products. I have quite a few of their measurement tools and setup devices and they're all built really well and none of them have given me any issues through regular use over the past 5 or so years when I first started buying this brand. This appears to be more of the same good stuff I've come to expect from iGaging.

I'm extremely impressed with the quality of this gauge. Typically you get what you pay for when it comes to digital gauges but this one is basically the other way around. Great quality for how much it cost. I use it to zero in my shaper and table saw for fine woodworking and it is very fast and accurate. If you're not an engineer working on 0.00001 tolerances, this is the one for you!

Little wimpy, and base was lighter than I had hoped, but it's basically a caliper mounted to a base. It is fine and works for my purpose. I'd buy again at this price.

Unless you need more than 6 inches, this inexpensive gauge will be all you need for critical granite surface height measurements.

Wanted to have a height/depth gauge to measure the height of routers in my router table.Checked different gauges (there are special gauges around with 2 "feet"), but was choosing finaly this one as because of high quality and awsome ratings. This one is made of metal and provides a range up to ~150mm. Measurements are reproducible and exact up to 10µm (0,01mm). Can be used to measure height and depth of a router in a table router very exactly.Only weakness from my point of view is the energy source (coin-cell, no AA or AAA-battery), but there is an on/off switch integrated so probably not necessary to change batteries so often.Highly recommended!