• High-speed steel burrs are used primarily for machining soft steel, aluminium, bronze, brass, etc. • Type of cut; M: medium, for machining unhardened steel and other moderately hard materials under normal conditions • EC: extra coarse, for soft materials when good stock removal is required, counteracts chip build-up between teeth • Cylindrical A-shape • Also usable with low cutting speeds • Packaging: plastic box - individually packed