ER11 Collet Wrench
thingiverse
Simple combination spanner/box wrench for ER11 collet spindles. Open spanner is for the spindle shank and is 13mm flat to flat. Box Wrench is for the collet ring and is 17.25mm flat to flat. Instructions I printed these from ABS with a LH of .3mm, Infill of 50% and 4 perimeter passes. Plenty strong for tightening collets and not crushing anything.
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