Depth measurement of small bore

[[Jo...]]

Hello,

I'm working on a circuit board and I'm trying to get a depth measurement of a small bore with a nominal of depth of 0.056. I'm using the DK 0,5 L22 probe downward in the -Z direction.

What I've done:
-Take a plane measurement of the bottom of the bore.
-Use a Perpendicular to compare the Bottom bore plane with the Top surface plane and using the depth measurement there as that depth.

My measurements are averaging 0.045. I don't believe this is the correct way to get depth, would anyone have any suggestions?

Thank you,
-Joe

[[SH...]]

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I think caliper distance will be the better option, you can check average value, minimum valueand maximum value. Can you possible to check perpendicular distance using plane to plane feature??

[[Jo...]]

Hey Shabu,

Much appreciated, I was able to get more accurate numbers with the caliper distance.

-Joe