Turn your hand tools into power tools with the NEIKO Digital Torque Adapter. This digital torque tool helps you get the perfect measurements and fit without over- or under-tightening. It has 2 modes: a peak mode that indicates when a specific level of torque is reached and a trace mode that displays how much torque is being applied so you won't lose efficiency. Our torque adapter can easily calculate torque in metric as well as SAE units (ft.-lb., N·m, and kg·m), making it a versatile tool to have to fix things at home or on the jobsite. This Digital Torque Adapter is available in 3 drive sizes: 1/2 in. 3/4 in. and 3/8 in. The 1/2 in. drive has a range of 29.5-147.5 ft.-lb. or 40-200 N·m, the 3/4 in. drive has a range of 150-750 ft.-lb. or 200-1000 N·m, and the 3/8 in. drive has a range of 14.7-99.6 ft.-lb. or 27-135 N·m. It provides tight tolerances and accurate measurements of ±2%. This digital device offers a 50-use memory, audio and visual notification, and auto shut off after 80 seconds of idle time. The drive and drive socket are easily compatible with standard torque wrenches and torque sticks for added versatility. This digital adapter takes 2 AA batteries.