From Customers:
"Precise holes - all are within .001 of marked size, most closer than that. Well made, with no burred edges or distortions."
"You can get a gauge that looks like this, and should do the job for much less, and "settle" for it if you must. I tried one and the holes were rough, most needed deburring, and it gave no confidence. I gave it to a colleague in the shop and bought this."