Cordless Torque Wrenchesries Chargeable Digital Torque-Conc rench  Ultra-powerful battery is 2 times of common battery;  Chargeable design makes operation more convenient;  Digital setting display control function;  Tightening/loosing repeatability is less than 3%;  Quick charge function,Website:http://www.dudemachinery.com, charging time less than 60 minutes;  Equipped with latest digital torque control system to ensure the  accuracy of settled torque;  ABS strong case, easy to transport and store.  Standard set includes two pcs of 28V super-powerful Li-battery.ModelTorque range      (Nm)Square      CD      (mm)L      (mm)E      (mm)Weight      (Kg)Non-Load speed (rpm)DTEC-75S100-7503/4''883852807.024.0DTEC-110S200-11001''883802807.113.0DTEC-125S250-12501''883802807.111.0DTEC-255S300-25501''884252808.97.0DTEC-350S400-35001''884252809.05.0DTEC-420S450-42001-1/2''884252809.54.0