Accupro 588260 ER40 Collet 0.81 Inch

Product Description

The ACCUPRO 588260 is an ER40 series collet designed for use in CNC machining centers, milling machines, and other rotating spindle equipment that accepts ER40 toolholding systems. With a collet size of 0.81 inches (decimal) and a minimum collet capacity of 0.781 inches, this collet provides secure, concentric clamping of round shank cutting tools. It is rated for use at pressures up to 1000 psi. Machinists and toolroom technicians install this collet into compatible ER40 chucks or collet holders to hold end mills, drills, reamers, and similar tooling during precision machining operations.

This collet is suited for production and job-shop environments running ER40 toolholding systems. It fits standard ER40 collet chucks used across a wide range of vertical and horizontal machining centers. The 0.81-inch capacity makes it appropriate for larger-diameter shank tooling within the ER40 range. It is sold individually, making it practical for replacing a single worn or damaged collet without purchasing a full set.

Key Features

• ER40 collet series for use with standard ER40 collet chucks and holders
• 0.81-inch decimal collet size with a minimum capacity of 0.781 inches
• Rated to 1000 psi clamping pressure
• Single-unit packaging — sold individually (quantity of 1)
• Weighs 0.85 pounds for straightforward handling and installation

Compatibility

Designed as an OEM-style replacement or direct-fit collet for use in ER40-compatible collet chucks and toolholding systems on CNC and manual machining equipment.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Always power down and lock out the spindle drive before installing or removing a collet. Insert the collet into a clean, undamaged ER40 collet chuck and torque the retaining nut to the chuck manufacturer's specification using the appropriate ER spanner wrench. Inspect the collet bore and seating taper for chips or wear before each use to maintain clamping accuracy.