How long will my head last?
All parts subject to wear can be replaced indefinitely. Theoretically a head can run forever. We have tools in service today that are over 10 years old.
We recommend flipping the reaction ring after about 250 hours of actual machining. And having the motor refreshed after another 250 hours. Bearings and other wear items should be inspected at this time.
Next topic: Can I do my own repairs?