Wiha TorqueControl 10 50 Inch lbs. 20 Piece Slotted Phillips Torx Hex Blades BL1860 2 20 Volt Max XR Hammer Drill 20 Volt Max XR Hammer Drill DCK494P2 13 minutes (Max) with BL1850B +30% greater than tightening torque Automatically resets for next torque cycle Torque Blades: Wiha special chrome vanadium molybdenum tool steel Through hardened for best wear resistance Wiha ChromTop Finish on tip for a perfect fit every time particularly light and compact Handle sizes proportioned to optimize torque Torque Settings: ±6% Accuracy Audible and perceptible click when the pre set torque has been attained Quality & Accuracy Guaranteed to 5000 Cycles or 1 year Secure Torque Setting