Generally I use a screwdriver.
Have a very accurate (and relatively expensive) torque screwdriver, but mostly use it for scope-mounting. Have yet to find any significant difference in various inch-pounds with most well-bedded centerfire rifles, and have experimented plenty. So just tighten the front screw first, with the rifle tilted upward so the recoil lug rests firmly against the stock inletting, then firm up the rear screw.
