National product offers np-2801 used for screwing and assembling your kits and products which makes this job more accurate and easier than before. This ac semi-automatic screwdriver, with its torque accuracy and a free speed of 800-1000 r.P.M, improves production efficiency and enhances smooth operation. The np-2801 weighs 675 gm and features adjustable stepless from 0.4-1.5 n.M.