The Vortex 5C Round Bore Lathe Collet, 4.5 mm, is a soft, borable 5C collet designed to be bored to a precise size, depth, taper, or shape to match your component. When used with a 5C lathe collet chuck, it enables you to create a tailored bore that fits your workpiece with repeatable accuracy. This collet is built for repeatable performance, delivering 13–15 micron runout to help maintain concentric gripping during boring and machining. It can be re-bored multiple times to accommodate larger parts, extending its usable life. Pins are used to keep the collet open during the boring process, and you should keep the pins for repeated use. Low Runout for Precise Machining: 13–15 micron runout ensures consistent grip and concentricity, improving part accuracy and surface finish. Bore-to-Size with Re-bore Capability: Soft collets can be bored to a precise size, depth, taper, or shape and re-bored multiple times for larger parts—reducing the need for multiple unique collets. Pin-assisted Open-Bore Process for Reuse: Pins hold the collet open during boring, enabling straightforward rework and ensuring you can reuse the same collet across multiple jobs. By letting you tailor each bore to your exact workpiece and reusing the same collet across a range of sizes, the Vortex 5C Round Bore Collet helps you reduce downtime, minimize waste, and achieve consistent results in both precision and production environments.