Double cut burrs are designed with right and left hand flutes combined to produce smooth and fine finishes. They produce small chips and give excellent control of the burr and grinder. They can be used on steel, stainless steel, high temp alloys and cast iron.
Single cut burrs are designed with right hand spiral flutes that are designed for rapid stock removal, leaving a rougher finish than double cut burrs. They can be used on steel, stainless steel, cast iron and non-ferrous materials.
