This mill is economical but excellent quality at this price. Well-machined, the rollers are tempered steel, polished to a mirror shine. The mill features two flat rollers, two wire rollers and a pattern roller. The pattern roller has two different patterns. Gear ratio is 3:1 and wire rollers from 0.75 to 5mm. Rollers are simple to change for different applications. The roller opening is 80 mm. NOTE: For drawing plain sheet metal use a maximum 5 SWG gauge (3.75mm) and a minimum of 26 SWG gauge (0.45mm). For drawing wire use a maximum 5 SWG gauge and a minimum of 20 SWG gauge. Weight 58 lbs.