· The blade is made of SK5 high-carbon steel. The hardness of the Japanese pull saw teeth can reach HRC60-63 degrees.· Hand Saw with sharp double edged blade, flexible and durable. One side is 17 TPI one side for hard woodworking is 11TPI for soft woodworking. The blade with hard pulse teeth durable and flexible, can both rip cut and cross cut with smooth cut edge.· The pull saw is light weight and sharp blade, accurate cuts with much less effort. Perfect for small woodworking job and detail trimming work.· Our pull saw apply Japanese process craft, durable and hardness and wear-resistant, long life span. Triple grinding teeth, sharper cut in both direction while moving.· If it is a product quality problem, just contact brand after-sales，we will refund in full, and there is no need to return and there is no need to return product.