Descriptions: Dimensions: 76 x 150 x 50mm Steel Rollers : ø 28 x 127mm Adjustable distance 0,025 - 0,1 inch (0.635 - 2,54 mm) Crank handle : 200mm The Grain Mill is constructed using materials that will last a lifetime.Cold rolled steel for the rollers before,but now they are updated,Stainless steel instead of cold rolled steel.6061 Aluminum body and hopper and oil impregnated brass bushings. • Width and roller diameter is optimized for use with power drill • Adjustable rollers at both ends to give uniform crush • 12 TPI knurl to efficiently pull grain through rollers while leaving hull intact to form an excellent filter bed for sparging. The hopper holds 3.2kg at one time.