●High: low cutting resistance, increased opening speed, easy chip cutting, no The perforation is neat, smooth and without edges ●Designed for durability and long life, creating a beautiful ●Different sizes to choose from 16 / 18 / 20 / 22 / 25mm ●Advanced technology manufacturing and materials: alloy and heat-treated, the has the characteristics of high, smooth cutting, good shock resistance, and good toughness ●Wide range of applications: any wood and wood products, plastics, plywood and other materials that you need beautifully perforated, suitable for industrial hinge installation, wood processing and maintenance, model making, goal installation, drawer installation and other occasions, Manufacturer: ERRORY