Value Collection 230-4454 5C Expanding Collet Steel

Product Description

The VALUE COLLECTION 230-4454 is a 5C expanding collet machined from steel for use in lathes, rotary indexers, and collet chucks that accept the 5C collet standard. Expanding collets grip workpieces from the inside bore rather than the outside diameter, making them the correct choice when the workpiece must be held by an internal surface. This collet features a 2-inch head diameter, a 1-inch head length, and a concentricity rating of 0.0020 inches TIR, supporting accurate, repeatable workholding in precision turning and grinding operations. It is installed by machinists and toolroom technicians on manual and CNC lathes.

This 5C expanding collet is suited for manual lathes, CNC lathes, and collet-style rotary fixtures that accept the 5C format. The grip range spans 0.7500 inches minimum to 1.9375 inches maximum, covering a wide range of internal workpiece diameters. The internal thread size is 1.041 inches-24 and the external thread size is 1.242 inches-20. Typical applications include holding rings, bushings, flanges, and other bored workpieces for second-operation turning, facing, and grinding work in job shop and production environments.

Key Features

• Expanding collet design grips workpieces by internal bore for second-operation and ring-style workholding
• 0.0020 inch TIR concentricity for accurate, repeatable stock location
• Grip range from 0.7500 inches to 1.9375 inches to accommodate a variety of bore sizes
• 2-inch head diameter and 1-inch head length in the standard 5C form factor
• Steel construction for durability in production turning and grinding environments
• Internal thread 1.041 inches-24 and external thread 1.242 inches-20 for proper collet closer engagement

Compatibility

Designed as a standard 5C-format expanding collet compatible with lathes, collet chucks, rotary indexers, and collet closers that accept the 5C collet standard.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Before installing or removing a collet, power down the lathe or machine spindle completely and confirm the spindle has stopped rotating. Thread the collet into the closer or chuck by hand first to verify proper thread engagement before applying any wrench. Inspect collet bore and seating surfaces for chips or burrs before tightening, as debris on the seating taper will directly affect runout.