1.Durable high carbon steel blade 2.Aggressive pull stroke cut 3.Soft handle with strong ABS plastic inserted 4.Scroll Saws. Scroll Saw 1.Durable high carbon steel blade2.Aggressive pull stroke cut3.Impulse hardening4.Dynamic setting teeth5.Replaceable blade6.Soft handle with strong ABS plastic inserted7.Teeth pitch: 13points.8.Available szie: 270mm,300mm.