... -2.5N.m TDA-9801 DC semi auto high speed electric screwdriverCE FCC Model NO.TDA-9801working voltDC18,28,36Vspeed800rpm,1200rpm ... ±0.3%torque adjustablestepless regulationScrew tighteningDC semi auto high speedsizeΦ38×220mmweight480g Feature: High speed,easy assembly, durable ensure it is ...