- Versatile applications: Adjustable handles provide secure grip and rapid adjustments for applications that require frequent and quick changes or operation in tight spaces, such as lathes, drill presses, sawing machines, milling machine fixtures, and other machines and devices. - User friendly: Locking latch handle with quick-release lever, adjustable clamping force, fixed handle that resists slipping. Can rotate freely 360 degrees. To release, simply lift the ratchet lever with the push button to rotate freely for quick adjustments, and it is easy to remove or install. - Aluminum alloy and carbon steel: Lightweight aluminum alloy handles offer high strength, corrosion resistance and long service life. The lever surface is sprayed, smooth and flat to prevent rust. The threaded stud is black-oxidized to resist rust. The fixed handle made of carbon steel provides greater stability and stiffness. - Useful tips: Choose the correct size. Always tighten the clamping handle firmly to prevent movement. Do not overtighten, as this can damage or strip the threads in the counterpart. Replace the handle if needed.