Value Collection 230-4305 5C Round Collet 1-5/64 in

Product Description

The VALUE COLLECTION 230-4305 is a 5C round collet machined from steel for use in 5C-compatible spindles, chucks, and collet closers. It holds round workpieces at a nominal bore size of 1-5/64 inches with a total indicator reading (TIR) of 0.0005 inches, making it suitable for precision turning, milling, and grinding operations where consistent concentricity is required. The internal thread measures 1.041 inches-24 and the external thread measures 1.242 inches-20, conforming to standard 5C geometry. Machinists and tool room technicians install this collet during setup when workholding accuracy is critical.

This collet is intended for use in machine shop environments where 5C collet systems are the standard workholding solution. Typical applications include CNC lathes, manual engine lathes, collet blocks, and spin fixtures equipped with 5C spindle noses. It is suited for production runs and toolroom work requiring repeatable part holding at the stated bore diameter. The steel construction provides the rigidity and wear resistance expected in continuous machining use.

Key Features

• 1-5/64 inch round bore for standard round-stock workholding
• 0.0005 inch TIR for precision concentricity in turning and grinding applications
• Steel construction for rigidity and durability under continuous machining loads
• Internal thread size: 1.041 inches-24
• External thread size: 1.242 inches-20
• Conforms to standard 5C collet geometry for broad spindle compatibility

Compatibility

Designed as a standard 5C-style round collet for use in any machine tool spindle, collet closer, or fixture built to accept the 5C collet standard.

Installation Notes

Installation is performed by a machinist or tool room technician. Before inserting or removing the collet, ensure the machine spindle is fully stopped and the collet closer or chuck is released. Inspect the collet bore and spindle taper for chips or debris before seating the collet, as contamination will directly degrade TIR. Do not force a collet into a spindle; hand-threading engagement followed by closer actuation is the correct procedure.