Review on IGaging 34 626 Engine Cylinder Measurement by Matt Weber

That seems like a pretty solid value for occasional use of the gauge. I have other iGaging products and they all do their job well. I tested this on my mics and used a Cummins 6BT to finish the block. worked well and easily found any taper/out-of-round in my cylinders. Seemed accurate and more importantly, consistent. I wish I had a Mitutoyo instead, but couldn't justify the cost of such a rare use. This helped to achieve very economical costs.