Value Collection 1230-4222 5C Round Collet 12.50mm Steel

Product Description

The VALUE COLLECTION 1230-4222 is a 5C round collet machined from steel for use in 5C-compatible spindles and collet chucks on lathes and other turning equipment. It accepts round workpieces and provides a total indicator runout (TIR) of 0.015 mm, making it suitable for applications that require consistent workpiece concentricity. The internal thread measures 1.041-24 and the external thread measures 1.242-20, conforming to standard 5C collet dimensions. Weighing 0.5 pounds, this collet is a straightforward drop-in for shops running 5C tooling setups.

This collet is used in machine shops, toolrooms, and manufacturing environments where 5C spindle tooling is the standard. It is appropriate for manual lathes, CNC lathes with 5C-compatible headstocks, collet closers, and indexing fixtures that accept the 5C form factor. Typical installers are machinists and tool-and-die professionals performing workholding setup on production or job-shop turning equipment. The 12.50 mm collet size accommodates round bar stock or parts near that diameter.

Key Features

• 5C round collet form factor — compatible with standard 5C spindles and chucks
• Steel construction for durability under repeated clamping cycles
• TIR of 0.015 mm for reliable concentricity in precision turning operations
• Internal thread size: 1.041-24
• External thread size: 1.242-20
• Collet size: 12.50 mm

Compatibility

Designed as a standard-dimension replacement or addition for machine tool setups using 5C collet spindles, collet chucks, and collet closers that accept the 5C form factor.

Installation Notes

Installation is performed by machinists or tool setup personnel. Before inserting or removing a collet, ensure the lathe or machine spindle is fully powered down and the drawbar or collet closer is fully released. Inspect the collet bore and spindle taper for chips or contamination before seating the collet. Do not force the collet into the spindle; proper engagement should require only hand pressure followed by normal drawbar torque per the machine manufacturer's specifications.