[M2 HSS Material]: Compared to other commonly used grade HSS. M2 has 50% more Tungsten and 150% more Molybdenum, both of which are key elements in improving the durability.
[Nitriding Surface]: Has high surface hardness, better corrosion resistance and longer fatigue life.
[Spiral Flute]: Spiral groove facilitate the chips removal, saving time, cost and effort during the operation.
[Wide Application]: Designed for accurate enlarging, smoothing or finishing holes in stainless steel, cast iron, aluminum, copper, plastic, wood and other non ferrous metals.