Toolholding and Tooling Systems - Rotary Toolholdi in the Machining category from GoVets is the perfect place to find the right toolholding and tooling systems for your project. Hydraulic Chucks are a type of toolholding system that uses hydraulic pressure to securely hold a tool in place. They are used in a variety of machining applications and are designed to provide a secure grip on the tool while allowing for quick and easy tool changes. Shop today to find the perfect hydraulic chuck for your project.