Mandrel

Mandrel is a precision workholding tool designed to securely grip small-diameter components for machining, grinding, or inspection processes. Featuring an expandable sleeve mechanism, it tightly holds workpieces with an internal bore of 0.5mm, ensuring concentricity and minimal runout. Made from hardened steel or high-grade alloy, it offers excellent durability, wear resistance, and stability during high-speed operations. Ideal for micro-machining, watchmaking, dental tools, and electronics industries, the expanding collet mandrel allows for fast setup and repeatable accuracy. Its self-centering design provides uniform clamping force, making it essential for high-precision internal gripping in delicate or miniature applications.