These 24′ ( 610mm) Roughneck bow saw blades with raker teeth are designed for use on green wood. ( We also supply the Straight Teeth blades recommended for pruning or use on seasoned wood.) All Roughneck blades are suitable for most makes of bow saw frames. This spare blade is 610mm (24″) in size and has raker teeth. High quality Contractor Grade bow saw blade for quality and durability.