The 7" Peugeot Pepper Mill - Natural features mechanisms with grinding and channeling grooves cut into the metal. The channeling grooves (the larger ones) are designed to line up the peppercorns with the grinding grooves (the smaller ones) and to crack the corns in half before the actual fine grinding process. These grooves are individually cut into the metal, which is then case hardened, making the grinding nut and head as hard as a ball bearing. The mill is adjustable and easy to refill.