Foxbc 6-1/2 Coping Saw Blade Assortment With 10 Tpi, 15 Tpi, 20 Tpi, 32, 48 Pack 6-1/2 Inch Coping Saw Blade Assortment with 10 TPI, 15 TPI, 20 TPI, 32 TPI Coping Saw Blades 6-1/2in. long between pins to fit all standard frames and Fret, Scroll, Jewelers and Coping Blades Frame Saw. For precise sawing of wood, plastic, copper and other soft metals. Coarse- .125" wide x .020" thick x 10 TPI Coarse, fast cutting of thicker materials. Medium- .125" wide x .020" thick x 15 TPI Most common blade used for coping saw. Fine- .125" wide x .020" thick 20 TPI Fine teeth for a smooth finish, narrow width for tight turning. Metal Cutting .250" wide x .014" thick x 32 TPI For cutting non-ferrous metals such as aluminum, copper, brass mild steel. Package quantity: 48 Pack, 12-each TPI 12 Pack