Value Collection 230-4452 5C Expanding Collet Steel

Product Description

The VALUE COLLECTION 230-4452 is a 5C expanding collet machined from steel for use in 5C-compatible spindles, fixtures, and collet chucks. It features a minimum TIR (total indicator runout) of 0.0020 inches, providing consistent concentricity during turning, grinding, and second-operation work. The head measures 1 inch in diameter and 1 inch in length. Internal threading is 1.041 inches at 24 threads per inch, and external threading is 1.242 inches at 20 threads per inch. At 1.5 pounds, it is built for repeated use in production and job-shop environments. Machinists, tool-and-die makers, and CNC operators are the typical end users.

This expanding collet is suited for workholding applications where the part must be gripped from the inside or on an external diameter within the supported range. The grip range runs from 7/16 inch (0.4375 inches) minimum to 0.8000 inches maximum. Expanding collet configurations like this one are common in second-operation setups, bar-feed lathes, and precision grinding fixtures where repeatable part location is critical. The steel construction handles the clamping loads typical of light to medium-duty turning and grinding passes.

Key Features

• Expanding collet design grips internal or external workpiece surfaces within the stated range
• 0.0020 inch concentricity (TIR) for repeatable, accurate part location
• Grip range: 0.4375 inches (7/16 inch) minimum to 0.8000 inches maximum
• 1 inch head diameter and 1 inch head length fits standard 5C spindle noses and fixtures
• Internal thread: 1.041 inches at 24 TPI; external thread: 1.242 inches at 20 TPI
• Steel construction for durability under repeated clamping cycles

Compatibility

Designed for use in standard 5C collet spindles, chucks, and indexing fixtures that accept 5C expanding collets.

Installation Notes

Installation is performed by machinists or tooling setup personnel familiar with 5C workholding systems. Ensure the spindle or chuck bore is clean and free of chips before seating the collet. Do not exceed the stated grip range, as over-range expansion can damage the collet or reduce concentricity. Inspect threads on both the collet and the draw tube or closer for wear before each use.