Value Collection 230-4129 5C Round Steel Collet 29/64 in

Product Description

The VALUE COLLECTION 230-4129 is a 5C-style round steel collet designed for use in compatible 5C collet chucks, collet closers, and indexing fixtures found in machine shop environments. Sized at 29/64 inch, this collet holds round workpieces with a total indicator runout (TIR) of 0.0005 inch, making it suitable for precision turning, grinding, and milling operations. The internal thread measures 1.041 inch-24 and the external thread measures 1.242 inch-20, conforming to the standard 5C collet interface. Installation and use are performed by machinists and tool room technicians working with lathes, collet blocks, and rotary fixtures.

This collet is intended for machine shops, toolrooms, and production environments where consistent, repeatable workholding is required. It is suited for use on manual engine lathes, CNC turning centers, and bench-top fixtures that accept the 5C collet standard. The 29/64 inch bore size accommodates round bar stock of that diameter. Its steel construction provides the rigidity and wear resistance expected in continuous production use.

Key Features

• 29/64 inch bore capacity for round workpieces
• 0.0005 inch TIR for precision concentricity
• 1.041 inch-24 internal thread per 5C standard
• 1.242 inch-20 external thread per 5C standard
• Steel construction for durability and rigidity
• Conforms to the widely adopted 5C collet interface

Compatibility

Designed as an OEM-style replacement or direct addition for any workholding system that accepts the standard 5C collet format, including 5C collet chucks, collet closers, collet blocks, and rotary indexing fixtures.

Installation Notes

Installation is performed by qualified machinists or tool room personnel. Before inserting or removing the collet, disengage the spindle and confirm all motion has stopped and power is isolated. Inspect the collet taper and the chuck bore for chips or burrs before seating the collet, as contamination will degrade TIR performance. Do not exceed the rated bore size, as overloading a collet can cause splitting or loss of grip.