Value Collection 230-4211 5C Round Collet 11mm

Product Description

The VALUE COLLECTION 230-4211 is a 5C round collet machined from steel for use in 5C-compatible spindles and collet closers on lathes and other turning equipment. It accepts a 11.00 mm (nominal) round workpiece and holds it with a Total Indicator Runout (TIR) of 0.015 mm, providing the repeatable concentricity that production and tool-room work demands. The internal thread measures 1.041 inches at 24 threads per inch, and the external thread measures 1.242 inches at 20 threads per inch. Machinists, toolmakers, and CNC operators install these collets when workholding precision and quick changeover are priorities.

This collet fits standard 5C spindle noses found on bench lathes, automatic screw machines, indexing fixtures, and collet blocks used in milling and grinding operations. The round profile makes it suitable for bar stock, turned blanks, and cylindrical components up to the rated collet diameter. It is a practical choice for both job-shop and production environments where a reliable, economical 5C collet is needed without sacrificing dimensional accuracy.

Key Features

• 5C round collet profile compatible with standard 5C spindle noses and collet closers
• 11.00 mm collet size for round workpieces
• 0.015 mm TIR for repeatable concentricity across setups
• Internal thread: 1.041 inches-24 for secure engagement with the draw tube
• External thread: 1.242 inches-20 for proper seating in the spindle nose
• Steel construction for durability in production workholding applications

Compatibility

Designed as a standard 5C-style round collet for use in any machine tool spindle, collet closer, or fixture built to the 5C collet standard.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Always bring the spindle to a full stop and lock it out before inserting or removing the collet. Inspect the collet taper, threads, and mating spindle nose for chips, burrs, or wear before seating the collet, as debris will directly affect runout. Thread engagement should be smooth and free of binding; forced engagement can damage both the collet threads and the draw tube.