Originally Posted by
LongSheeep
The steel tip is not very effective at grinding titanium, but I did manage to remove the entire "crack".
The steel grinding tip may have left iron residue on the Ti so you may find rust stains if it gets wet. A wash with a mild acid (citric for example) will avoid this and won't hurt the Ti at all. This is why boat owners use bronze wool (not steel wool) to clean bright work.