Every mounting system operates best at predetermined manufactured specs. With the Weaver Torque Wrench , you can dial down to that exact screw pressure quickly and easily. This wrench features a torque range of 10 to 80 inch-pound, includes a variety of 10 magnetic bits and includes a rugged storage case. The Weaver Torque Wrench takes the guess work out of tightening mounting systems and prevents over tightening of riflescope tubes. This torque wrench range adjustment is from 15 in-lbs to a maximum of 80 in-lbs. in 5 in-lb increments.Bits Included:2- .025x.18 Flat 1- .035x.08 Flat 1- .035x.300 Flat 1- .065x.430 Flat 1- 3/32 Hex Allen 1- 5/32 Hex Allen 2- T15 Hex 1- T20 Hex