Audit. These versatile Quality Audit tools enable Quick Go/No Go tests for weld stud integrity to be carried out quickly and efficiently on a wide range of weld studs from M2.5 to M12 Accuracy. The risk of damage to the fastener is greatly reduced, due to the unique breaking technology Easy and effective to use. Intuitive %26 bi-directional T shaped handle for easy operation End Fittings. A range of Interchangeable end fittings are available. End fittings are available for use with most popular weld stud thread sizes and lengths Long tool life. High quality, robust design and construction, further guaranteed by a two year warranty Versatility. A range of compatible interchangeable End Fittings are available, for use with most popular weld stud thread sizes and lengths. All WSTT Tools are supplied with a Calibration Certificate when ordered with an attached end fitting These Wrenches are preset type torque tools. There is no external adjustment scale and they must be set to the r