This wall holder is designed to hold a set of up to (20) standard or Metric Collet holders that have a outer plastic holder roughly 1.45" x 1.45" as shown. This bolts to the wall with three holes above and three below the holder and angles the collets slightly upward to avoid them ever falling out.
We can make similar, different sized holders if required. Please let us know what you need.
Standard shipping charges will apply to the rest of the world.