Accupro 588366 ER32 Collet 8 Mm Bore

Product Description

The ACCUPRO 588366 is an ER32 series collet designed for use in CNC machining centers, milling machines, and manual mills equipped with ER32-compatible tool holders. This collet accepts an 8 mm shank diameter and provides concentric clamping force to secure cutting tools, drills, reamers, and end mills during machining operations. The ER32 collet system is a widely adopted standard in precision machining, offering a reliable grip across a range of shank diameters with minimal runout. This unit is sold individually and is suited for toolroom technicians, machinists, and production floor personnel who require a direct replacement or additional collet for an existing ER32 setup.

ER32 collets are used in both light and heavy-duty metal cutting applications across job shops and production environments. The 8 mm bore size accommodates standard metric shank tooling commonly found in general machining, die and mold work, and precision drilling operations. This collet fits any spindle or toolholder built to the ER32 standard, making it compatible with a broad range of machine tool brands and configurations. It is appropriate for horizontal and vertical machining centers as well as manual knee mills fitted with ER32 collet chucks.

Key Features

• ER32 collet series — widely standardized for broad toolholder compatibility
• 8 mm bore diameter for metric shank cutting tools
• Designed for concentric clamping with minimal runout in precision machining applications
• Sold as a single unit — direct drop-in for existing ER32 setups
• Suitable for drills, end mills, reamers, and other round-shank tooling

Compatibility

Designed for use with ER32-standard collet chucks and toolholders across CNC and manual machine tool platforms accepting the ER32 collet series.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician with the spindle fully stopped and locked out per machine-specific lockout/tagout procedures. The collet should be seated properly into the ER32 collet nut before inserting the tool shank, then tightened to the collet nut with an appropriate spanner wrench. Inspect the collet bore and seating surface for chips or debris before each use to maintain runout accuracy. Do not use collets that show visible cracking, deformation, or wear beyond the manufacturer's stated clamping range.