What would you recommend for a torque driver for various firearm screws? I have a few torque wrenches at work, but I've never needed a driver. I haven't even bothered to ask the Snap On man what they get for one, as I know damned well I won't pay that much for one. I'm just looking for something that will do a reasonable job on a few scope and action screws here and there. Has anyone used the Wheeler unit? It seems to be about as inexpensive as they come, but I'll spend more if it's a hunk of junk.