The Smart-Torq Fixed Limiter & X3 Driver Kit is a professional-grade solution for precise torque application and versatile gunsmithing tasks. The six Smart-Torq Fixed Limiters, accurate to within A 5%, ensure reliable tightening of scope rings, mounts and action screws without the risk of overtightening. The "click-style" overload clutch provides consistent performance and durability.The included X3 Driver offers unmatched versatility, functioning as a 72-tooth ratcheting driver for precise adjustments, a T-handle for added torque and a standard screwdriver for general use. This kit also features 12 essential driver bits, a 1/4" hex-to-square adapter and a 1/2" socket, covering core gunsmithing sizes and most optics and accessory needs. All components fit neatly into a compact, stackable storage case for excellent organization and portability. Six Smart-Torq Fixed Limiters with settings of 15, 20, 25, 30, 45 and 65 in-lb. Accuracy of torque application within A 5%. "Click-style" overload clutch prevents overtightening. X3 Driver features 72-tooth ratchet for precise operation. T-handle mode for increased torque application. Traditional screwdriver mode for general-purpose use. Includes 12 bits: hex, Torx, Phillips and flat configurations. 1/4" hex-to-square adapter and 1/2" socket expand functionality. Durable, compact, stackable storage case for organization. Ergonomic, non-slip grip on X3 Driver for secure handling. Compact design allows use in confined spaces. Compatible with most optics, mounts and accessories.