IRWIN Tools Coping Saw Blades, Coarse, 3-pack (2014500) Designed for use with your existing ProTouch coping saw Replace damaged or worn-out coping saw blades These coarse coping saw blades have a tooth count of 17 pt. 6-1/2" blade length Use a coping saw for cutting the curved profile on crown, base or chair-rail molding Designed for use with your existing ProTouch coping saw Replace damaged or worn-out coping saw blades These coarse coping saw blades have a tooth count of 17 pt. 6-1/2" blade length Use a coping saw for cutting the curved profile on crown, base or chair-rail molding