Olson Coping Saw Blades Fine 6-1/2 in. x 20 TPI, 12-Pack provide a smooth finish with a narrow width designed for tight turning. These blades are i for cutting wood, plastic, copper, and other soft metals. Crafted from hardened and tempered spring or high carbon steel, the teeth are precision punched or milled to ensure accurate sawing, smooth finishes, and extended blade life. Compatible with any coping saw frame that accepts 6-1/2" long pin end blades, this pack includes 12 blades to keep you well-stocked for your projects. Specifications include a length of 6-1/2 inches, a width of .125 inches, a thickness of .020 inches, and 20 teeth per inch for fine cutting performance.