The Atlas Copco LUM clutch tool range is the workhorse range of our pneumatic screwdriver line-up. The LUM pistol grip screwdriver combines the best engineering, – continuously refined and improved – to bring you superior ergonomics, durability and productivity. The tools are suitable for joints with demands on torque accuracy, providing accurate tightening time-after-time, independent of variations in joint stiffness. The LUM pistol grip range comes in several different configurations.