Benefits: Accurately measures tungsten stick-out in 1/16" (1.6mm) increments up to 1" (25.4mm) . Constructed of CNC machined brass with knurled locking sleevefor durability and precision. Includes key ring holder with nylon strap and spring type aluminium hook loop for easy portability. Consistently measure - and repeat - stick out from welder to welder. The CK Tungsten Stick-Out Gauge is the perfect way to ensure consistent tungsten stick-out for professional results every time you weld. This product is perfect for TIG welders of all levels, from hobbyists to professionals. It's easy to use and accurate, making it a valuable tool for anyone who wants to improve their welding skills.