The Borka BCK-MX combines the proven versatility of the Extended Configuration (BTK-E1) with dedicated low-range torque limiters for the most delicate precision-scope adjustments. Designed for professional shooters, gunsmiths, and optics technicians who demand repeatable, accurate results every time. The BCK-MX includes all the components of the BTK-E1- including extended hex bits and bit extension- plus a specialized precision torque package:4 inch-lbs. Precision Torque Limiter (PTL)8 inch-lbs. Precision Torque Limiter (PTL)PTL Gear for seamless use with the included PTLsThese low-range PTLs provide the perfect solution for scope zero-stop and elevation/windage turret screws, delivering consistent, delicate torque without risk of over-tightening. To accommodate the 4 inch-lbs. PTL, one spare T-20 Torx bit from the BTK-ST bit set has been replaced with a 5/64" hex bit- selected specifically for compatibility with the low-torque limiters. FeaturesBTD1070-IP Adjustable Torque Driver -...