Value Collection 1230-4218 5C Round Collet 10.50mm Steel

Product Description

The VALUE COLLECTION 1230-4218 is a 5C round collet machined from steel for use in lathes, collet chucks, and indexing fixtures equipped with the 5C collet system. It features a 1.041 inch-24 internal thread and a 1.242 inch-20 external thread, with a total indicator runout (TIR) of 0.015 mm for close-tolerance workholding applications. Weighing 0.5 pounds, this collet is suited for production machining environments where repeatable, concentric clamping of round stock is required. Machinists and tool room technicians are the primary installers and users of this component.

This 5C round collet is used in manual and CNC lathes, rotary tables, and collet blocks that accept the 5C collet standard. It is appropriate for holding round workpieces in both job shop and production settings. The 10.50 mm collet size makes it a practical choice for gripping metric-dimensioned round bar stock or turned parts requiring secure, repeatable clamping during facing, turning, and secondary operations.

Key Features

• 5C round collet format — compatible with the widely used 5C collet system
• 10.50 mm collet size for metric round stock applications
• Steel construction for durability in production machining environments
• TIR of 0.015 mm for close-tolerance, concentric workholding
• 1.041 inch-24 internal thread and 1.242 inch-20 external thread
• Lightweight at 0.5 pounds for easy handling and installation

Compatibility

Designed as a standard 5C round collet replacement or addition for lathes, collet chucks, collet blocks, and indexing fixtures built to accept the 5C collet standard.

Installation Notes

Installation is performed by machinists or tool room technicians familiar with 5C collet systems. Before inserting or removing the collet, ensure the spindle is fully stopped and the machine is powered down or locked out per applicable safety procedures. Inspect the collet seat and bore for chips or damage before seating the collet. Do not exceed the rated collet size, as overloading the collet bore can compromise clamping force and runout performance.