by n2oah » 5 Nov 2005 22:58
I got a 6" digital caliper at Harbor Freight (harborfreight.com) for about $17. You can use the store locater to find one near you (if you are into tools, you should consider going to a store), or you can order one online.
If you don't want a digital caliper, you can buy a plastic caliper at your local hardware store, they go for about $4-6 there, but they are harder to read.(or maybe I'm just lazy)
"Lockpicking is what robbing is all about!" says Jim King.