Iscar 4513072 ER11 Mini Clamping Collet Nut

Product Description

The ISCAR 4513072 is an ER11 mini clamping nut designed to secure collets in ER11 toolholding systems. It threads onto the nose of an ER11 collet chuck, applying the clamping force needed to lock the collet and cutting tool in place during machining operations. Weighing 0.2 pounds, this compact nut is built for ER11 series collets and is sold as a single unit. It does not support coolant-through configurations. Machinists and toolroom technicians use this nut as a direct replacement when an existing clamping nut shows wear, thread damage, or fails to deliver consistent clamping torque.

This mini clamping nut is suited for use in CNC machining centers, milling machines, and high-speed spindle applications that rely on the ER11 collet standard. The ER11 system is common in compact toolholders and router spindles where a smaller collet chuck nose diameter is required. This replacement nut fits standard ER11 collet chucks and is appropriate for both production and maintenance environments where minimizing downtime is a priority.

Key Features

• Designed specifically for ER11 series collets
• Mini clamping nut profile for compact ER11 chuck noses
• No coolant-through passages, suited for dry or flood coolant setups where through-spindle cooling is not used
• Lightweight at 0.2 pounds for easy handling during tool changes
• Sold individually, one nut per package

Compatibility

Designed as a direct replacement mini clamping nut for ER11 series collet chucks. Verify thread pitch and chuck nose specifications against your existing toolholder before installation.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician familiar with ER11 toolholding systems. Disengage spindle power and ensure the machine is in a locked-out, zero-energy state before removing or installing the collet nut. Use an ER11 collet nut spanner wrench to achieve proper seating. Do not use pipe wrenches or improvised tools, as these can damage the nut flats and lead to inconsistent clamping force.