Value Collection 230-4137 5C Steel Collet 37/64 in

Product Description

The VALUE COLLECTION 230-4137 is a 5C-style steel collet sized at 37/64 inches for round workholding applications. It delivers a total indicator runout (TIR) of 0.0005 inches, making it suitable for precision turning, grinding, and milling operations where concentricity matters. The internal thread measures 1.041 inches-24 and the external thread measures 1.242 inches-20, both standard dimensions for 5C-compatible spindles and closers. Machinists and toolroom technicians install this collet in 5C-equipped lathes, milling machines, and grinding fixtures to hold cylindrical stock or finished parts during machining operations.

This collet is intended for round cross-section workpieces measuring 37/64 inches in diameter. It fits the 5C collet system, which is widely used in both production and job-shop environments on manual and CNC lathes as well as collet-type milling fixtures. The steel construction provides durability under repeated clamping cycles and normal chip-load conditions. It is a single-piece unit packaged individually.

Key Features

• 37/64 inch round bore size for precise workholding of same-diameter stock
• 0.0005 inch TIR for high concentricity and repeatable part location
• 1.041 inches-24 internal thread — standard 5C closer engagement
• 1.242 inches-20 external thread — standard 5C spindle nose fit
• Steel construction for durability under repeated clamping cycles
• 5C collet format compatible with a broad range of production and toolroom equipment

Compatibility

Designed as an OEM-style replacement or standard toolroom collet for machines equipped with a 5C collet spindle system.

Installation Notes

5C collets are installed by licensed machinists or skilled toolroom personnel. Before installing or removing a collet, power down the spindle completely and confirm the machine is in a safe, locked-out state per applicable OSHA lockout/tagout procedures. Inspect the collet bore and spindle taper for chips or debris before seating the collet. Do not exceed the rated bore size when clamping workpieces, as overloading the collet can damage the spindle or reduce holding accuracy.