The most comprehensive all-in-one AR15 Armorer's Torque Wrench Kit ever assembled. Master-Fit single-purpose crowfoot wrenches are made specifically for the job. Specialized for precise fitment and manipulation of MIL-SPEC and free-float barrel nuts, muzzle devices and castle nuts. Titanium-coated stainless steel construction provides tight tolerances for solid nut-gripping strength and enhanced no-slip tool control. Paired with the heavy-duty Master-Fit Torque Wrench, it takes Gun DIY building to a new level of Master Grade quality and precision. It's time to raise your Gun Tool Expectations and upgrade to Master Grade! Titanium-coated stainless steel construction for enhanced durability and corrosion resistance Includes 12 specialized crowfoot wrenches tailored for AR15 components Features a heavy-duty torque wrench adjustable from 10 to 150 foot-pounds with A 4% accuracy Ratcheting head with 45 teeth allows for fine adjustment and optimal leverage Specialized design for a precise fit to minimize marring on firearm parts "Deep Seat" fitment ensures secure engagement and no-slip operation Hard-sided case with structured foam for organized tool storage and protection Compatible with 3-prong flash hiders, castle nuts and various free-float barrel nuts Dual-directional torque feature for correct application on reverse threads Designed for professional armorer's and enthusiasts' firearm maintenance and customization needs Engineered to meet the rigorous demands of both novice and seasoned gunsmiths