ELECTRIC TOOLS > DENSEI DENSEI / DELVO Electric Screwdrivers are high-quality tools for professional use, with special emphasis on precise control of torque and long life. DENSEI / DELVO tools apply just the correct amount of torque - with sure, positive control always at your fingertips. They're smooth and shockless in operation, too. Shockless, a sophisticated clutch and motor braking mechanism reduces the shock at the end of the screwing operation and causes less fatigue. Long Life, Motor brush stands over a million operations. You can replace them easily. High Accuracy, High repeatable torque accuracy provides more consistent screw tightening torque. High speed, High-speed torque motor cuts down screw tightening time and improves production efficiency. Quieter, Compare a Delvo screwdriver with a conventional pneumatic type, you'll hear the difference.