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The PARLEC 16ERHPN is an ER16 collet nut designed to secure ER16 collets in compatible toolholders during CNC machining and manual milling operations. The collet nut threads onto the toolholder nose and applies clamping force to the collet, locking the cutting tool in place. This nut does not support coolant-through applications. It is a standard replacement or spare component installed by machinists and toolroom technicians working with ER16-series toolholding systems.
The 16ERHPN is suited for use in light to medium machining setups where ER16 collets are the standard toolholding format. ER16 collets accommodate smaller-diameter cutting tools and are common in high-speed spindles, CNC machining centers, and manual mills. This nut is a single-piece component sold individually and is appropriate for shops maintaining spare hardware for quick toolholder changeovers.
Designed as an OEM-style replacement collet nut for ER16-series toolholding systems.
Installation is performed by qualified machinists or toolroom technicians. Ensure the spindle or toolholder is fully de-energized and at a complete stop before changing collet nuts. Use the appropriate ER16 collet nut spanner wrench to achieve proper seating - do not use pipe wrenches or improvised tools that can damage the nut face. Inspect collet seating surfaces for wear or debris before assembly.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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