Accupro 785052 ER40 Collet 0.469 Inch Capacity

Product Description

The ACCUPRO 785052 is an ER40 series collet designed for use in CNC machining centers, milling machines, and compatible toolholding systems. It accepts tooling with a decimal inch capacity of 0.469 inches and a minimum collet capacity of 0.429 inches, giving machinists a defined clamping range suited to end mills, drills, and other round-shank cutting tools. The collet measures 1.75 inches in width, 1.75 inches in length, and 2 inches in height, with a package weight of 0.6 pounds. This part is installed by machinists, tool crib technicians, and CNC setup personnel working in production and job-shop environments.

The ACCUPRO 785052 fits ER40-compatible toolholders and spindle systems used in vertical and horizontal machining centers across light manufacturing and heavy production settings. ER40 is a widely adopted collet standard, making this collet applicable across a broad range of spindle noses and toolholder shanks that accept the ER40 series. It is packaged individually and sold in single-unit quantities, making it suitable for replacement purchases or expanding an existing collet set.

Key Features

• ER40 collet series for broad toolholder compatibility
• 0.469 inch decimal capacity with 0.429 inch minimum clamping range
• Compact form factor: 1.75 x 1.75 x 2 inches
• Lightweight at 0.6 pounds for easy handling during tool changes
• Single-piece packaging for direct replacement purchasing

Compatibility

Designed as an OEM-style replacement collet for ER40-series toolholding systems. Fits any spindle or toolholder manufactured to the ER40 collet standard.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Before changing collets, power down and lock out the machine spindle per established lockout/tagout procedures. Use the appropriate ER40 collet nut and spanner wrench to seat and torque the collet into the holder. Inspect the collet bore and seating surfaces for wear or debris before installation to ensure accurate tool runout.