Value Collection 530-4212 5C Square Collet 3/16 Inch

Product Description

The VALUE COLLECTION 530-4212 is a 5C-style square steel collet designed for use in collet-style workholding systems on lathes and other precision machine tool setups. This collet accepts 3/16 inch square stock and holds a Total Indicator Runout (TIR) of 0.0005 inches, providing repeatable, accurate workholding for close-tolerance turning and machining operations. The internal thread measures 1.041 inch-24 and the external thread measures 1.242 inch-20, conforming to standard 5C dimensional specifications. Machinists and tool-room technicians working with square bar stock rely on this collet type for consistent grip and minimal runout during production runs.

This collet is suited for use in production machining environments where square stock up to 3/16 inch must be held securely in a 5C-compatible spindle or collet closer. Typical applications include repetitive turning operations on manual and CNC lathes, second-operation work, and precision grinding setups equipped with 5C workholding fixtures. The square geometry makes it appropriate for machining operations requiring flat-sided stock rather than round or hex profiles.

Key Features

• 5C square collet format accepts 3/16 inch square stock
• TIR of 0.0005 inches for repeatable, accurate workholding
• Internal thread size: 1.041 inch-24
• External thread size: 1.242 inch-20
• Steel construction for durability in production machining environments

Compatibility

Designed as an OEM-style replacement or standard fitment for 5C-compatible collet closers, spindle noses, and workholding fixtures that accept square collets in the 3/16 inch capacity range.

Installation Notes

Installation is performed by a machinist or tool-room technician familiar with 5C workholding systems. Before inserting or removing the collet, ensure the machine spindle is fully stopped and the collet closer or draw tube is disengaged. Inspect the collet taper and spindle bore for chips or debris before seating; foreign material will affect runout. Torque the closer to the machine manufacturer's specified value and verify runout with a dial indicator before beginning production cuts.