Post deleted by Claude

cains has them cheaper last time I looked.
The metal the jig is made out of is harded than a file or saw blade and will wear a file out if you rub it on it long enough. Same metal a racker guage is made out of for a chainsaw. I can't recall the name of the metal off the top of my head at the moment.
They work good IMHO
If purchaseing one you will need to get one the size of the sight you are going to be useing.

Woody

 

[44-henry]

I bought one several years ago, and still use it on occasion when I don't want to take the time to set my mill up. I'll be building a reproduction of an original southern mountain rifle I recently added to my collection and will probably use this tool for installing the front sight, since I don't want it to look like it was cut with a milling cutter. You can add a shim to the top of the barrel when using the tool to cut a shallower slot, this will be needed in my case since the original dovetail is extremely shallow. There worth the money, but if you know someone who has a mill and a dovetail cutter they can be made very easily from a short length of seamless square tubing. Just have them mill a dovetail slow in the tubing crossways, drill and tap for a set screw at an angle to hold your barrel in place and than caseharden the tool with Kasenite and you'll be in business. It almost takes longer to describe than to do, I know, made one once for a friend and it only took about an hour start to finish.