Mike I believe you will find that problem with most all chucks. I bought a Vicmarc VM100 and found the $99 Griz chuck is the same thing. So for $99 I bought 3 of them. I put the Cole jaws on one, the shark jaws on one, the 4" jaws on one and the regular jaws on the VM 100. Most times I use the shark jaws which go from 1 5/8" to 3 1/8" or the regular jaws which go from 1 1/4" to 2 3/4". Which ever chuck I have on I use a calipers set for like 2 3/4" for the shark jaws or 2" for the regular jaws. Just something you live with.
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