Rego-fix 1120.09533 ER20 Collet 0.375 Inch

Product Description

The REGO-FIX 1120.09533 is an ER20 collet designed for precision tool holding in CNC machining, milling, and drilling applications. It accepts a 0.375 inch (3/8 inch) shank diameter and holds a Total Indicator Runout (TIR) of 0.0002 inches, making it suitable for close-tolerance work where concentricity matters. With an overall length of 31.5mm and an overall diameter of 21mm, this collet fits standard ER20 collet chucks and is installed by machinists and tool room technicians.

This ER20 collet is used in a wide range of machining centers and manual mills equipped with ER20 collet chucks. It is well suited for production environments and job shops requiring consistent, repeatable tool runout. The 3/8 inch bore accommodates common end mill, drill, and reamer shank sizes. It is sold individually and is appropriate wherever a precision ER20 collet of this bore size is needed.

Key Features

• ER20 collet standard for broad chuck compatibility
• 0.375 inch (3/8 inch) bore diameter for common shank tooling
• 0.0002 inch TIR for high-precision, low-runout tool holding
• 31.5mm overall length fits standard ER20 chuck geometry
• 21mm overall diameter matches ER20 collet chuck specifications
• Sold individually with a minimum order quantity of 1

Compatibility

Designed as an OEM-style replacement or direct-fit collet for ER20 collet chucks used in CNC machining centers and manual milling machines.

Installation Notes

ER collets are installed and removed by qualified machinists using an appropriate ER20 collet nut and spanner wrench. Always ensure the collet chuck and spindle are fully stopped and de-energized before inserting or removing the collet. Seat the collet fully into the collet nut before threading onto the chuck body to prevent damage to the collet or chuck taper. Inspect the collet bore and seating surfaces for chips or debris before installation.