Complete angle measurement solution. The Protractor Angle Combination Set includes a square head, center head, protractor, and ruler for use in fields such as machinery and textile industries. Userfriendly design. The double indexed protractor is graduated 180° in both directions, making it simple to read angles accurately without hassle. Precise graduations. Detailed graduations are provided for 4R 8ths, 16ths, 32nds, and 64ths, so you can make precise measurements every time. Durable material. Crafted from stainless steel that resists erosion, this set offers longevity and reliability under demanding conditions. Applications Machinery setup and fixture alignment: use the square and center heads with the protractor and ruler to verify and set precise angles during assembly and maintenance. Textile pattern layout and inspection: accurately lay out angles and checks on fabrics or garment components. General workshop tasks: perform precise angle measurements in metalworking, woodworking, and other fabrication projects where accuracy is essential.