Honing is a process using cutting stones.

Honing

is a finishing process using a honing machine that utilizes honing stones on the inside of a hole. This process involves rotating the honing knives on a special mandrel (honing guide) that removes material in a precise manner to get an exact size and exception surface finish.
It is a fantastic compliment to deep-hole drilling

We have the capability to hone from 38.1mm to 150mm (1.5 to 6 inch) diameter and up to 4.5 meters (15 ft) long.