Value Collection 230-4136 5C Steel Collet 9/16 in

Product Description

The VALUE COLLECTION 230-4136 is a 5C round collet machined from steel for use in 5C collet chucks, closers, and fixtures on lathes, grinders, and milling machines. The collet holds 9/16-inch round stock and is precision-ground to a total indicated runout (TIR) of 0.0005 inches, making it suitable for close-tolerance turning and grinding operations. The internal thread measures 1.041 inches at 24 threads per inch and the external thread measures 1.242 inches at 20 threads per inch. Machinists and toolroom technicians install this collet in production and job-shop environments where repeatable workholding accuracy is required.

This collet is intended for use with standard 5C collet-compatible spindles and workholding systems. It accepts 9/16-inch round bar stock and is a direct-fit replacement for worn or damaged 5C round collets of the same size. Typical applications include CNC and manual lathe turning, cylindrical grinding, and secondary operations requiring concentric workholding. The steel construction provides durability under repeated clamping cycles in light to medium production use.

Key Features

• 9/16-inch round collet size for standard round bar stock and round workpieces
• 0.0005-inch TIR for close-tolerance concentricity in turning and grinding applications
• 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
• 5C collet form factor fits standard 5C-compatible chucks, closers, and fixtures

Compatibility

Designed as an OEM-style replacement for standard 5C collet systems accepting 9/16-inch round collets in lathes, grinders, and collet fixtures.

Installation Notes

Installation is performed by machinists or toolroom technicians familiar with 5C workholding systems. The spindle or collet closer must be fully retracted and the machine powered down before inserting or removing the collet. Inspect the collet taper and the mating spindle bore for chips, burrs, or wear before seating the collet, as debris on the taper surface will directly affect TIR. Do not overtighten the collet closer, as excessive clamping force can distort the collet and degrade concentricity.