Techniks 04216-06.5 ER16 Collet 6.50mm

Product Description

The TECHNIKS 04216-06.5 is an ER16 series collet designed for use in CNC machining centers, milling machines, and other rotating spindle equipment that accept ER16 toolholding systems. This collet grips cutting tools at a 6.50mm collet size and features through coolant capability, allowing coolant to flow directly to the cutting edge for improved chip evacuation and tool life. It holds a total indicated runout (TIR) of 0.005mm, making it suitable for precision machining operations where concentricity is critical. Machinists and CNC operators rely on ER collets for their versatility across a wide range of tool diameters within a single collet series.

This collet is suited for production and job-shop environments running ER16-compatible toolholders on vertical machining centers, horizontal mills, or CNC lathes with live tooling. The through coolant feature makes it particularly useful in high-speed cutting applications where flood coolant alone does not reach the tool tip effectively. It is appropriate for both light and moderate cutting loads within the ER16 clamping range.

Key Features

• ER16 collet series - fits any ER16-compatible toolholder or collet chuck
• 6.50mm collet size for precise tool gripping at that diameter
• Through coolant capable - delivers coolant directly to the cutting zone
• TIR of 0.005mm for high-concentricity tool holding
• Lightweight at 0.075 pounds - minimal rotating mass added to the spindle

Compatibility

Designed for use with ER16-compatible collet chucks and toolholders. Fits any standard ER16 clamping nut and chuck body conforming to DIN 6499 ER16 specifications. No specific model numbers were provided in the product data.

Installation Notes

ER collets are installed by a machinist or CNC setup technician. Always power down and lock out the machine spindle before changing collets. Insert the collet into the ER16 collet nut before threading the nut onto the toolholder body - never seat the collet directly into the chuck without the nut engaged. Use a calibrated torque wrench and the appropriate ER16 collet nut spanner to achieve proper clamping force without overloading the collet or chuck threads.