Birel spindle wrench alignment adapter

I think Birel has different thickness spindles, so measure yours. Mine was 20.3 mm ID and the model is 20.1 mm. Fits perfectly. If yours is significantly different, send a message and I'll help out. I slightly oversized the larger section, but those relief cuts allow it to squish down for a gentle interference fit. Obviously the easiest way to print this is also the weakest against snapping it off. To counter this the through-hole provides for another section of walls. I used 4 walls and 20% infill, but you will know your printer and material best. Printed in PETG since it will be out in the sun sometimes.