Accupro 785013 ER32 Collet 0.313 Inch Capacity

Product Description

The ACCUPRO 785013 is an ER32 series collet designed for use in CNC machining centers, milling machines, and other rotating spindle applications that accept the ER32 collet standard. This collet holds workpieces and cutting tools with a nominal capacity of 0.313 inches, with a minimum collet capacity of 0.281 inches, allowing it to grip round shanks within that clamping range. Measuring 1.75 inches in height and 1.5 inches in diameter, it is a compact, precision-ground clamping component. Machinists and CNC operators install this collet when setting up cutting tools or workholding in compatible ER32 chucks and collet holders.

ER32 collets are widely used in production and job-shop machining environments across vertical and horizontal machining centers, drill presses, and tapping heads equipped with ER32-style chucks. The 0.313-inch size is commonly selected for standard end mills, drills, and round-shank tooling of that diameter. This collet is suited for both ferrous and non-ferrous material cutting applications where consistent tool runout and reliable clamping force are required during high-speed or high-feed operations.

Key Features

• ER32 collet series — fits ER32-standard chucks and collet holders
• 0.313-inch nominal collet capacity with 0.281-inch minimum clamping range
• Compact geometry: 1.75 inches tall, 1.5 inches wide, 1.5 inches long
• Lightweight at 0.35 pounds — minimal spindle load contribution
• Single-piece collet design for straightforward tool changes

Compatibility

Designed as a direct-fit replacement or supplemental collet for any ER32-standard collet chuck or toolholder accepting the ER32 series specification. Verify chuck bore and collet series before installation.

Installation Notes

ER32 collets are installed and removed by trained machinists or CNC setup technicians. Before changing collets, power down the spindle completely and confirm the machine is in a locked or safe state per the equipment manufacturer guidelines. Use the appropriate ER collet nut and spanner wrench rated for ER32 chucks — do not overtighten or substitute non-rated hardware. Inspect the collet bore and chuck taper for chips or debris before seating to ensure accurate runout.