Product Description: ① As a consistent, precise crush is also vital for making the best beer possible, the roller is the most important part in the consistent crush. ② We are using real bearing for the roller instead of brass bushings. Real ball bearings not only make the lifetime of the mill longer also make the whole grinding process more efficient. Using Guide: ① Clean it with water before using. ② No need to coat vegetable oil on the surface of rollers during production process. Feature: Multi-functional grinder, cereal, beans, seasoning DIY your favorite coffee or other food, the best life assistant 12 TPI knurl to efficiently pull grain through rollers while leaving hull intact to form an excellent filter bed for sparging Adjustable rollers at both ends to give uniform crush. Adjustable range: 0 - 0.065" Heavy-duty two-roller mill with adjustable gap-spacing Features integral drive shaft and axles Specifications: Type: Electric grain grinder Materials: Stainless steel roller, 6061 Aluminum for the mill body and hopper Roller: 6"x1.5"diameter (15x3.8cm diamter) Output rate: 13-22lbs/min (6-10kg/min) Hopper capacity: 5kg Packing size: 51*25*22cm G.W.: 9kg Package included: 1 x Malt Mill 4 x Hoppers 1 x Gear Motor 2 x Rollers