Accupro 587377 ER32 Collet 0.748 Inch 0.01mm Tir

Product Description

The ACCUPRO 587377 is an ER32 series collet designed for use in CNC machining centers, milling machines, and other rotating spindle equipment that accepts the ER32 collet standard. This collet holds workpieces or cutting tools up to 0.748 inches (19.00 mm) in diameter, with a minimum collet capacity of 0.708 inches (18.00 mm), providing a clamping range of 0.040 inches. Total Indicated Runout (TIR) is rated at 0.01 mm, making it suitable for precision toolholding applications where concentricity directly affects surface finish and tool life. Machinists and toolroom technicians working in production or job-shop environments rely on consistent TIR specifications to maintain tight tolerances across repeated setups.

This collet is used in any machine spindle or toolholder that accepts the ER32 collet format, one of the most widely adopted collet systems in industrial machining. Typical applications include end mill holding, drill chuck replacement, reaming, and tapping operations on vertical machining centers and manual knee mills. The ER32 form factor is common in both production and maintenance machining environments across a broad range of industries.

Key Features

• ER32 collet series for broad spindle and toolholder compatibility
• 0.748 inch (19.00 mm) maximum collet capacity
• 0.708 inch (18.00 mm) minimum collet capacity for a 0.040 inch clamping range
• 0.01 mm TIR rating for precision concentricity in toolholding applications
• Single-piece unit packaged individually for direct replacement or inventory replenishment

Compatibility

Designed for use in any spindle, toolholder, or collet chuck that accepts the ER32 collet standard. Verify that the host toolholder or machine spindle is rated for the ER32 form factor before installation.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Always power down and lock out the machine spindle before inserting or removing a collet. Seat the collet fully in the collet nut before threading the nut onto the toolholder body, and torque the nut with the appropriate ER collet wrench to manufacturer specification. Inspect the collet bore and seating surfaces for chips or debris before each use, as contamination directly degrades TIR performance.