Value Collection 1230-4249 5C Round Collet 26mm

Product Description

The VALUE COLLECTION 1230-4249 is a 5C round collet machined from steel, designed for use in 5C-compatible lathes, collet chucks, and fixture systems. It holds round workpieces with a collet size of 26.00 millimeters and delivers a Total Indicator Runout (TIR) of 0.015 millimeters, making it suitable for applications where concentricity and repeatability matter. The internal thread size is 1.041 inches at 24 threads per inch, and the external thread size is 1.242 inches at 20 threads per inch. Machinists and toolroom technicians install these collets when precision workholding is required for turning, grinding, or secondary operations.

This collet is intended for use in manual and CNC lathes, rotary fixtures, collet blocks, and indexing heads that accept the 5C collet format. The 5C system is widely used in job shops and production environments for holding bar stock and finished parts during turning and milling operations. The round profile makes it appropriate for standard cylindrical workpiece clamping. It is a direct-use replacement or spare collet for shops that maintain a full range of 5C collet sizes.

Key Features

• 26.00 millimeter collet size for round workpiece clamping
• TIR of 0.015 millimeters for consistent concentricity
• Steel construction for durability under repeated clamping cycles
• Internal thread: 1.041 inches at 24 threads per inch
• External thread: 1.242 inches at 20 threads per inch
• Standard 5C collet format compatible with common 5C-system tooling

Compatibility

Designed as a standard 5C-format round collet for use in any machine tool or fixture that accepts the 5C collet system with matching internal and external thread specifications.

Installation Notes

Installation should be performed by a qualified machinist familiar with 5C collet systems. Ensure the spindle or collet closer is fully de-energized and the machine is locked out before inserting or removing the collet. Inspect collet bore and threads for chips or debris before seating. Do not exceed the rated workpiece diameter for the collet size, as overloading can damage both the collet and the spindle nose.