Value Collection 230-4155 5C Steel Collet 55/64 Inch

Product Description

The VALUE COLLECTION 230-4155 is a 5C round steel collet designed for use in 5C collet chucks, closers, and fixtures commonly found in manual and CNC turning, milling, and grinding operations. Sized at 55/64 inch, this collet holds round stock with a total indicator runout (TIR) of 0.0005 inches, providing the concentricity required for precision machining work. 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. Machined from steel, it is suited for production environments where repeatability and holding force are critical.

This collet is intended for use in machine shops, tool rooms, and production facilities running 5C-compatible spindles and workholding equipment. It is a standard round collet, making it appropriate for gripping cylindrical bar stock, pins, and round workpieces during turning or secondary operations. Machinists and tool room technicians handling precision workholding setups are the primary installers and users of this collet.

Key Features

• 55/64 inch round collet size for gripping cylindrical workpieces
• 0.0005 inch TIR for high concentricity and precision runout control
• 1.041 inch-24 internal thread for proper seating in 5C-compatible closers
• 1.242 inch-20 external thread for standard 5C chuck and fixture engagement
• Steel construction for durability in production machining environments
• Standard 5C form factor for broad compatibility with 5C workholding systems

Compatibility

Designed as an OEM-style replacement or standard addition for machinery equipped with 5C collet-style workholding systems accepting round collets.

Installation Notes

Installation should be performed by a qualified machinist or tool room technician familiar with 5C collet systems. Ensure the spindle, chuck, or collet closer is fully de-energized and at rest before inserting or removing the collet. Inspect the collet bore, seating taper, and threads for debris or damage before installation. Do not force the collet into the closer; proper thread engagement and taper seating are required for accurate TIR performance.