The MilesCraft Exactor arrived yesterday evening.
I checked it over with my vernier calipers. I checked the overall width of the unit at both ends and in the middle and all measurements were identical. I then measured the width of the slots that the ruler rides in and it was also uniform (and a surprisingly tight fit for the ruler with no discernible wobble within the slot.
I also checked the markings on the ruler for 1, 2, 3, 4 and 5" and they all seemed spot on.
I have just handed it to our QC Manager who will put it on our Nikon optical comparator and check the accuracy of the 90 degree and 45 degree ruler settings.
I have no way to check the accuracy of the level vials, other than it seemed about the same as my good quality torpedo level.
When our QC manager reports back to me on the angular accuracy I will update this post.
I would note that it fits easily in my pocket and it feels like it is well-made despite the plastic handle. The blister pack featured ridiculously thick plastic and was too thick to cut with a scissors and had welds on the pack on 1/4" centers. A utility knife easily opened it but I hate using knives for this as I have slipped the blade in the past and cut myself. I can't imagine the need for so much security.
ADDENDUM: Our QC manager just reported to me. The 90 degree angle is dead-on and there was no play.
The 45 degree angle is off by 9 minutes (just under 1 degree) and no play.
I think that is acceptable for woodworking, especially for a product that offers so much versatility and is pocket-able.
ADDENDUM II: I just noticed that the level vials are set rather deeply in the Exactor and I pretty much have to be at eye-level with the vials to see the bubble. It is a little better from the rear, but not nearly as visible as on m torpedo level.
The next thing to check is durability. I will not be creating any test for this; I just plan on using it . If it fails quickly I will come back and comment.
No animals were injured or killed in the production of this post.