Value Collection 1230-4206 5C Round Collet 4.50mm

Product Description

The VALUE COLLECTION 1230-4206 is a 5C round collet machined from steel for use in 5C collet chucks, indexers, and fixtures found in production and tool-room environments. The collet holds round workpieces and features a 1.041 inch-24 internal thread and a 1.242 inch-20 external thread for positive engagement with compatible spindle noses and closers. Total indicated runout (TIR) is rated at 0.015 mm, delivering the concentricity needed for turning, milling, and grinding operations. Machinists, tool grinders, and CNC lathe operators are the primary installers of this type of collet.

This collet is suited for round-stock clamping applications on manual and CNC lathes, rotary indexers, collet blocks, and spin fixtures in both job-shop and production settings. The 5C system is widely used in light to medium machining where quick workpiece changes and repeatable concentricity matter. The steel construction handles the clamping forces and wear cycles typical of these environments without distortion under normal operating loads.

Key Features

• 5C round collet profile for use with standard 5C spindles and closers
• 4.50 mm collet size for precise round-stock clamping
• Steel construction for durability under repeated clamping cycles
• 1.041 inch-24 internal thread for secure closer engagement
• 1.242 inch-20 external thread matches standard 5C spindle nose specifications
• 0.015 mm TIR rating supports accurate concentricity in turning and grinding operations

Compatibility

Designed as an OEM-style replacement or direct-use collet for standard 5C collet chucks, closers, indexers, and collet blocks that accept the 5C collet form factor.

Installation Notes

5C collets are installed and removed by qualified machinists following the machine tool manufacturer's procedures. Ensure the lathe or fixture spindle is fully stopped and the machine is locked out before inserting or removing the collet. Clean the collet bore and spindle seat before installation to prevent runout caused by chips or debris. Inspect the collet and closer threads for wear or damage before each use.