The soft soil tools include scraper, side scraper, tearing cutter, leading cutter, etc. . They are suitable for the construction conditions of rock soil layer and sand layer with uniaxial compressive strength less than 30MPA. "Jinlu" tunneling tool adopts advanced intermediate frequency brazing equipment, high- quality alloy and self -developed wear-resistant surfacing material to improve the quality of products, which can effectively increase the tunneling distance of the tool and reduce the number of tool changes, reduce construction cost.