Yes, in the process of building one of the GPR flint kits. It is really not that difficult, just take your time as others have said. The first thing I would do would be to order a main spring vice, if you don't already have one, you will need it and the cost is not all that much, especially when you think of the cost of waiting for a new spring after you busted the first, ask me how I know! Take the lock apart, put one of the internal parts back on and then chisel out so it and the plate go back into the mortise, then add another part and do the same. If you try to do it with all the internals mounted on the plate it can be very easy to get the wrong impression as to where wood needs to be removed, ask me how I know this as well! You name the mistake and I've probably made it, very good advise on not using a dermal tool, yup, go ahead and ask, and if you think a dermal can do harm in a heart beat then ask be about a full sized router, yup, mean little bugger. I've used my router to cut the barrel and ramrod channels with great success, but I forgot the advise of a very good friend of mine once, "always shut the power off before lifting the router from the work," go ahead ask me. Be careful, go slow, get some inlet black, lipstick, lamp black, something to coat the metal parts being inlet to show where the wood needs to come off. Believe me, if I can do this successfully, then you can, I am not a custom builder, just a guy that is handy with tools, too handy some times :cursing:
