Tig tungsten grinder.
Uses the tig torch collets - not an accurate way to do it but is easy.
Thread pitch is ¾-12.
Washer fits below collet nut - protects the bearings / bushes. Printed in tpu.
Printed in abs - 2.5 hours print. 20% infill. Organic or tree supports.
The author marked this model as their own original creation.