They have an interesting warrenty though I havn't seen this with many other products !
What happens if I break an M3 blank while I am working on it?
Oops Insurance (50% deductible): We recognize that M3 pen blanks cost more than other pen blanks on the market and they are worth every penny. What makes this material truly unique is the fact that it is unbelievably strong while at the same time easy to turn, carve and polish. That being said, mistakes do happen and when they happen with an expensive material it hurts. We want you to be successful. So if you break the pen blank, drill through, cut it wrong or destroy it in another fashion while working with it we will replace it for 50% of the current catalog price plus shipping. Simply send us the pieces with a brief explanation of what happened.