Treemonkey1000
Veteran Member
On my Morbark chipper I run around 10-20 hours on a set of knives before rotating.
I kind of keep a mental note on what I have been running through the chipper, and keep track of the hours via the hour meter.
Keeping the gap adjusted with respect to the anvil is also very important.
If I have even the slightest notion of any metal in the wood, I will set it aside for a burn pile.
It seems to me that a piece of rebar going through a chipper can get very expensive.
Or deadly with rebar.. You only get about 20 hours on your knives? Doing a lot of hardwoods or trees growing in the sand?