Value Collection 530-4208 5C Square Collet 1/8 in

Product Description

The VALUE COLLECTION 530-4208 is a 5C-style square collet machined from steel for use in compatible 5C collet-ready lathes, indexers, and fixtures. Designed to grip 1/8 inch square stock, this collet holds workpieces with a total indicator runout (TIR) of 0.0005 inches, supporting accurate, repeatable setups in production and job-shop environments. 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. Licensed machinists and toolroom technicians are the primary installers of this type of tooling component.

This 5C square collet suits applications where round 5C collets are not appropriate — specifically when holding square bar stock, square blanks, or other square-profile workpieces during turning, milling, or indexing operations. It fits standard 5C collet closers and collet-ready spindles that accept the 1.242 inch-20 external thread specification. Typical use includes light to medium-duty production turning and precision fixture work in both manual and CNC-ready setups.

Key Features

• Square collet profile for gripping 1/8 inch square workpieces
• Low TIR of 0.0005 inches for accurate, repeatable holding
• Steel construction for durability in production toolroom environments
• 1.041 inch-24 internal thread and 1.242 inch-20 external thread for standard 5C compatibility
• Compact form factor measuring 3 inches in height and 1 inch in width and length

Compatibility

Designed as an OEM-style replacement or addition for machine setups using standard 5C collet closers and spindle systems that accept the 1.242 inch-20 external thread specification.

Installation Notes

Installation of 5C collets is performed by qualified machinists or toolroom technicians. Before inserting or removing a collet, power down the spindle completely and confirm the machine is in a locked or safe state. Use the appropriate collet wrench or closer mechanism rated for 5C tooling — do not force the collet into the spindle bore. Inspect the collet bore and spindle taper for chips or debris before seating to protect TIR performance.