The new PRECISION Torque Screwdriver (Part No. K5500) achieves accurate torque application by eliminating both under and over tightening using anti-slip technology. This enables the user to deliver the correct torque with confidence irrespective of the task and operator experience. Simple torque adjustment can be achieved without the need of any additional specialist tools due to the Quick-Lock adjustment ring on the shaft of the unit. This allows fast and accurate adjustment and at the same time prevents the torque setting accidently being altered during the tool use. The K5500 Torque Screwdriver is a screwdriver with components that ensure tightening to a specified torque, this ensures tightening which is adequate, but not too much. A screw/nut/bolt that is not tightened enough may loosen in operation due to vibration and or moving parts, and excessive tightening can damage parts; for example, if the nuts holding the wheel of a bike in place are too loose, or damaged by over tightening, a wheel may come off at speed damaging the wheel, bike or the rider.