Thank you.With the rare exception of things like center bands and transmissions for extremely popular models (read: slimlines), I haven't seen anywhere that advertises spare parts for kits. Your best bet is probably to contact the vendor, let them know that the part failed, and see if they'll replace it.
Can guarantee that they were clean inside, took a round file and sandpaper to the inside prior to attempting. The plastic piece crushed under a very small amount of pressure.You probably had adhesive dried inside the tube. For future reference, clean the tubes with a round file before inserting the threaded plastic part. That part goes up over an inch, so clean up into the tube, not just right next to the end.
The part you need appears to be very similar to the same part used in the junior series of kits. Same drill bit/tube sizes. Maybe someone has one or two in their personal parts box. I looked but do not have one. Worth a try. If you have one of the jr kits check it out.Does anyone know where to order the plastics spacer/treaded part of a wood tube continential or Atrax? I had 2 of them just crush one me when I was trying to press them. The third went in smoothly.