Check the listing for details. WOODRIVER Project Kit - Ceramic Salt Mill Grinder. Condition: New. Listed at 14.99 USD. NEW, WOODRIVER Project Kit - Ceramic Salt Mill Grinder, 161464, Create a salt mill with this kit, your lathe, and a wooden / acrylic blank (lathe and blanks sold separately), Quality ceramic mechanisms, 6”, 8”, 10”, 12” long shafts offer maximum flexibility, Fully adjustable for the desired grind, WoodRiver Ceramic Salt Mill Grinder Kits offer quality and flexibility. Our kits feature quality ceramic mechanisms that ensure a wonderful grind and are available in four different shaft lengths to provide flexibility. No need to struggle with what length to make your mill – with 6", 8", 10", and 12" shaft lengths available, you have ultimate control over the size of your mill. Most grinder kits require a precisely bored-through hole, but the unique mounting hardware of our kit allows slight.