The Faithfull Spare Blade for Folding Pull Saw. The blade has a fine 21-teeth per-inch blade designed for precision cutting in woodworking. The teeth are triple-ground to give a smoother cut as well as to increase the lifespan of the blade. The blade is made from SK5 steel and has a chemical nickel plating which makes the blade more resistant to wear and corrosion.Select Option 150mm240mm Add to Basket Quantity