One of the few bad apples I've found...
I ordered this tool because I had a customer needing a new sear installed - and at the time unfortunately, I was on a very tight budget.. I was stuck between this tool and the Ed Brown version - but had previously outstanding experiences using products the Brownell's puts their name on... The instructions included with tool are... well, "Vague" is a gross understatement! After sticking a sear in it from every conceivable angle, you'll eventually figure out how to obtain the proper stoning surface... Also, the set screw, supposed to be factory set at .074", is NOT set... Good luck trying to properly set this, I just happened to have a .075" feeler gauge that I managed to fit in there and set and lock the screw. Also, this tool doesn't have a setting for stoning the relief angle, it tells you to do it by hand and eyeball. I promptly acquired a Marvell 1911 sear fitting jig, which has slots for both angles, and works wonderfully. This is the first Brownell's brand product that I have purchased (and I have bought a LOT) that wasn't worth keeping.