Our triangular solid carbide inserts offer you 3 long lasting cutting surfaces. When one is worn out simply rotate the tips around and use the other two cutting edges. Our  7/8G inserts come in 3 and 4 groove forms. When used together they provide an extremely solid cutting form offering you great value for money on the life of the tips.This product can also be re-ground. If returned to us in an acceptable condition this product can be re-ground up to 2 times.