John Ings scribed in :
abrasion. some woods contain 'sand' grains and are very abrasive. even carbide doesn't last long on these.
yes, it will happen if you don't watch out. much wood turning is done with a scraping action = heat. some wood turning tools have a cutting action, but not every wood turnenr knows that.
swarf, steam and wind
-- David Forsyth -:- the email address is real /"\