This cleaver features a thick 3mm blade for using on hard foods like chicken and fish bones. It also has a rounded edge and double-bevel blade. Mac knives are Known as some of the sharpest knives, They have razor-like edges for effortless slicing, they are hard so they stay sharp longer, One slice with MAC knives and you will experience for yourself a new definition of sharpness, nicely balanced and are a good value.