Mammoth tooth is like working with glass, agreed. The odor is foul for sure (not sure if I can make a distinction on what is the worst but a half face mask is a must) you dont want to breath the dust. I made an attempt to make some handles out of it, it drilled ok but when i tried to counter bore my holes it split in half. The stuff is miseable to grind too, so if u get some try to size it to minimize grinding. Mammoth ivory on the other hand is very workable, becareful not to overheat it because it will yellow and that is hard to get out. The mammoth tooth remaining in my inventory I will eventually try to use without drilling....someday (I don't really look forward to working with it again). But it is beautiful stuff.