Vortex 5C Metric Lathe collet - Round Bore - 21mm

The Vortex 5C Metric Lathe Collet – Round Bore – 21mm is a soft 5C boring collet designed to be bored to a precise size, depth, taper, or shape to match your component. It uses a round 21mm bore and integrates with a standard 5C lathe collet chuck to hold workpieces securely during machining.

Ideal for engineers, machinists, hobbyists, and shop technicians, this collet provides the flexibility to tailor a hold for each part. Its 13–15 micron runout specification helps ensure concentric bore quality and consistent results across jobs, reducing rework and improving finish.

• Low runout for precision: With 13–15 micron runout, this collet delivers tight concentricity and consistent bore quality, helping you achieve cleaner bores and reliable finishes every time.
• Re-boreable design with opening pins: Soft collets are bored to a precise size and can be re-bored multiple times to accommodate larger parts. Pins hold the collet open during boring, and you can reuse the pins for repeated setups, saving time and material.
• 5C compatibility with a round 21 mm bore: Designed for 5C lathe collet chucks, the round 21mm bore provides stable clamping and straightforward setup, reducing setup time and improving repeatability across operations.

Together, this Vortex collet helps you adapt quickly to changing part sizes without swapping tooling, keeps downtime to a minimum, and supports consistent, high-quality results from first cut to finished part. The combination of low runout, re-boreable flexibility, and solid 5C compatibility makes it a dependable choice for a broad range of machining tasks—from precision prototypes to small-batch production.