Techniks 04216-07.5 ER16 Collet 7.5mm

Product Description

The TECHNIKS 04216-07.5 is an ER16 series collet designed for precision workholding in CNC machining and toolholding applications. Built to a 7.5mm collet size, it delivers a total indicator runout (TIR) of 0.005mm, making it suitable for high-accuracy milling, drilling, and tapping operations. Through-coolant capability allows cutting fluid to pass directly through the collet to the cutting tool, supporting efficient chip evacuation and tool life in demanding cuts. Machinists and CNC setup technicians are the primary installers of this collet type.

This collet is used in ER16-compatible collet chucks mounted on CNC machining centers, manual milling machines, and multi-axis lathes in both job shop and production environments. The ER16 series is widely specified for light to medium material removal where compact toolholding is required. Through-coolant support makes it well suited for deep-hole drilling and high-speed operations where flood coolant alone is insufficient.

Key Features

• 7.5mm collet size for precise tool clamping within the ER16 bore range
• Through-coolant design channels cutting fluid directly to the tool tip
• TIR of 0.005mm supports tight-tolerance machining operations
• ER16 series collet fits standard ER16 collet chucks and nuts
• Lightweight at 0.075 pounds for easy handling during tool changes

Compatibility

Designed as an OEM-style replacement and standard fitment collet for ER16-compatible collet chucks and toolholding systems.

Installation Notes

Installation is performed by machining professionals during tool setup or changeover. Power down and lock out the spindle before inserting or removing any collet. Seat the collet fully into the ER16 collet nut before threading onto the chuck body, and tighten the nut using the appropriate ER collet spanner wrenches to the chuck manufacturer's specified procedure. Do not use impact tools on collet nuts.