VEVOR Combination Rolling Mill Machine Roller Width: 120 mm, Roller Diameter: 55 mm Rolling Mill Jewellery 85mm Roller Width Flat Rolling Manual Jewelry Press Tabletting Tool Jewelry DIY ToolsProduct Features PARAMETER DETAILS Roller gross length 120 mm (4. 72 inch), Roller diameter: 55 mm (2. 17 inch), Roller width left up: 85 mm (3. 35 inch), Middle roller width: 45 mm (1. 77 inch), Maximum opening: 0 5 mm (0 0. 2 inch), Square wire(+ 0. 01 mm): 2, 2. 5, 3, 3. 5, 4, 5, 6. SUPERIOR PERFORMANCE 4 1 reduction gear ratio allows the rollers to make one complete turn for every four turns of the mill rolling handle. It relieves the amount of