This rotating adjustable thumb length tool is an excellent addition to the Fasteners category in Industrial and Scientific .It saved me so much time by giving me the versatility to reach tight spaces and maneuver screws with ease. The adjustable feature ensures that it can accommodate all sizes of screws making it an essential tool to have in your arsenal. However, the handle could be a bit more comfortable to grip for long periods OF use. Overall, I highly recommend this product to anyone in need of an efficient and flexible screw tightening tool..