• This motor shaft collet is made of high quality steel material, straight shank with clamping nut to be tightened.
  • Extension rod diameter and the other parts are precision ground to eliminate unbalance, increase safety when cutting.
  • Straight extended shank fits for deep processing, meeting the needs of extending the depth of processing.
  • Collet is well packed in a protective container with label for safe transportation and storage.
  • It is widely used in boring, milling, drilling, tapping, grinding and other processing.

ER11 collets are designed for SMALL Machining, and they are Perfect for my CNC Mini Mill by Open Builds. I run a 48VDC Spindle that is very quiet and high RPM for Engraving with that Mill. I also have a SIEG "Nano Mill" that uses ER 11 Collets, So having an extra Chuck Spindle made sense, to build a small saw for cutting Brass. That is a design in progress.