Value Collection 1230-4203 5C Round Collet 3.00 Mm

Product Description

The VALUE COLLECTION 1230-4203 is a 5C round collet machined from steel for use in 5C-compatible spindles and collet closers on lathes, grinders, and rotary fixtures. The collet features a 1.041-24 internal thread and a 1.242-20 external thread, providing a secure, repeatable grip for turned or ground workpieces. With a total indicator runout (TIR) of 0.015 mm, it delivers the concentricity needed for close-tolerance turning and cylindrical grinding operations. Machinists and toolroom technicians rely on this style of collet for quick changeovers and consistent part centering without the setup time of a three-jaw chuck.

This 5C round collet is suited for machine shop production work, toolroom applications, and second-operation setups where a 3.00 mm workpiece diameter is required. It fits standard 5C collet closers and draw-tube style spindle systems found on engine lathes, turret lathes, and 5C indexing fixtures. Typical installations include high-volume turning operations where repeatable workholding and fast changeover are priorities.

Key Features

• 5C round collet design fits standard 5C spindles and collet closers
• 3.00 mm collet size for precise workholding of small-diameter stock or parts
• Steel construction for durability under repeated clamping cycles
• 1.041-24 internal thread and 1.242-20 external thread for proper engagement
• 0.015 mm TIR for consistent concentricity in close-tolerance operations

Compatibility

Designed as a standard 5C round collet replacement or addition for use with 5C-compatible collet closers, spindle noses, and indexing fixtures on engine lathes, turret lathes, and surface grinders.

Installation Notes

Installation should be performed by a qualified machinist with the spindle fully stopped and all power isolated from the machine before handling collets or collet closers. Inspect the collet bore and taper surfaces for burrs or chips before seating, as contamination will degrade runout. Thread engagement should be smooth and free of binding; never force a collet that does not seat cleanly. Follow the machine manufacturer's torque and draw-tube procedures as specified in the equipment manual.