Wheeler’s F.A.T. Wrench® (Firearm Accurizing Torque) brings perfect consistency to every screw on your rifle! This amazing handheld torque wrench lets you apply repeatable, accurate torque settings to scope rings, guard screws, and other screws, which aids in accuracy and decreases the opportunity for problems in the field. The FAT Wrench is a perfect compliment to the Deluxe Gunsmithing Screwdriver Sets. Together, they can ensure accurate tightening of most every screw on any gun in your collection. FEATURES - BITS ARE MADE FROM S2 TOOL STEEL AND HARDENED TO 56-56 ROCKWELL - "C" TORQUE ADJUSTMENT RANGE FROM 10 INCH/POUNDS TO 65 INCH/POUNDS - ACCURACY PLUS/MINUS 2 INCH/POUNDS UP TO 40 INCH/POUNDS; 40-65 IS +/- 5% - CONVENIENT STORAGE CASE INCLUDED