Value Collection 230-4109 5C Steel Round Collet 9/64 in

Product Description

The VALUE COLLECTION 230-4109 is a 5C round collet machined from steel, designed to hold round workpieces in 5C-compatible spindles, chucks, and collet closers. Sized at 9/64 inch, it delivers a total indicator runout (TIR) of 0.0005 inch, making it suitable for precision turning, milling, and grinding operations where concentricity is critical. The internal thread measures 1.041 inch-24 and the external thread measures 1.242 inch-20, conforming to standard 5C collet geometry. Machinists and tool room technicians install this collet to secure small-diameter round stock for high-accuracy material removal.

This collet is intended for use in manual and CNC lathes, milling machines, grinders, and indexing fixtures equipped with a 5C spindle nose. It suits production and job-shop environments where consistent grip and low runout are required across repeated setups. The 9/64 inch capacity targets small-diameter round bar stock and is a common size in precision screw machine and watchmaking-style work.

Key Features

• 9/64 inch capacity for small-diameter round workpieces
• 0.0005 inch TIR for precision concentricity
• 1.041 inch-24 internal thread matches standard 5C collet closer specification
• 1.242 inch-20 external thread for standard 5C chuck and fixture compatibility
• Steel construction for durability under repeated clamping cycles

Compatibility

Designed as an OEM-style replacement or standard-fitment collet for 5C-style spindles, collet closers, and collet chucks accepting round 5C collets.

Installation Notes

Installation is performed by qualified machinists or tool room technicians. Ensure the spindle or collet closer is fully de-energized and the machine is locked out before inserting or removing the collet. Clean the collet bore and spindle taper thoroughly before installation to prevent runout caused by debris. Do not exceed the collet's rated capacity, as oversize stock will damage the collet body and compromise accuracy.