Sandvik Coromant 5966364 ER32 Collet 0.75 Inch

Product Description

The SANDVIK COROMANT 5966364 is an ER32 series collet designed for use in CNC machining centers, milling machines, lathes, and high-speed spindle applications. This collet accepts a 0.75 inch (nominal) cutter or tool shank and features through-coolant capability, allowing coolant to be directed through the collet directly to the cutting zone. The overall assembly length is 1.5748 inches. The decimal inch collet size is 1.2992 inches. At 0.25 pounds, this is a precision-ground workholding component intended for use by machinists and CNC operators working in production and job-shop environments.

This ER32 collet is suited for use in any ER32-compatible chuck or toolholder across a wide range of machining operations including milling, drilling, reaming, and tapping. The through-coolant design makes it particularly well-suited for deep-hole drilling, high-speed machining, and applications where chip evacuation and tool cooling are critical to tool life and surface finish quality. It is a direct OEM-grade component from SANDVIK COROMANT, appropriate for both production floor and precision prototype work.

Key Features

• ER32 collet series for use in standard ER32-compatible chucks and toolholders
• 0.75 inch nominal tool shank capacity (1.2992 inches decimal inch collet size)
• Through-coolant capability for improved tool life and chip evacuation
• Overall length of 1.5748 inches for compact spindle-to-tool reach
• Lightweight at 0.25 pounds for minimal spindle load impact
• UNSPSC Code 27112800 for procurement and catalog classification

Compatibility

Designed for use with any ER32-compatible chuck or toolholder accepting a 0.75 inch tool shank. Confirm through-coolant compatibility with the mating chuck before installation.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing collets. Clean the collet and chuck bore thoroughly before seating to prevent runout caused by chips or debris. Do not overtighten the collet nut beyond the chuck manufacturer's specified torque range, and use a proper collet nut spanner wrench rather than improvised tools.