Value Collection 1230-4248 5C Round Collet 25.50mm

Product Description

The VALUE COLLECTION 1230-4248 is a 5C round collet machined from steel, designed for use in 5C-compatible collet chucks, closers, and indexing fixtures found in manual and CNC turning, milling, and grinding applications. With a collet size of 25.50mm and a Total Indicator Runout (TIR) of 0.015mm, this collet provides consistent, repeatable workpiece clamping for precision machining operations. The internal thread size is 1.041 inches-24 and the external thread size is 1.242 inches-20. Machinists and tool room technicians install this collet as part of standard workholding setups on lathes and rotary-table fixtures.

This 5C round collet is suited for machine shops, tool rooms, and production environments where 5C-series workholding is the standard. It is used to grip round bar stock and cylindrical workpieces during turning, milling, grinding, and secondary operations. The steel construction provides durability under repeated clamping cycles. It fits any machine or fixture built around the 5C collet standard, making it a straightforward replacement or additional collet for expanding a shop's workholding capacity.

Key Features

• 25.50mm collet size for round workpiece clamping
• TIR of 0.015mm for consistent concentricity and repeatable accuracy
• Steel construction for durability in production machining environments
• Internal thread size of 1.041 inches-24 for compatibility with standard 5C closers
• External thread size of 1.242 inches-20 for standard 5C fixture fitment
• Round collet profile suitable for gripping cylindrical bar stock and parts

Compatibility

Designed as an OEM-style replacement or additional collet for machines and fixtures built to the 5C collet standard, including lathes, milling machines, and indexing fixtures that accept 5C-series collets.

Installation Notes

Installation of 5C collets is performed by machinists or tool room technicians. Before changing collets, ensure the machine spindle is fully stopped and all power is locked out per facility lockout/tagout procedures. Clean the collet seat and closer threads before seating the collet to prevent damage to the taper or threads. Do not force a collet into a closer or chuck body; proper seating should require only hand pressure before tightening.