... , electroplate treatment Sanding finished or matte finished3.Harden teeth saw blade, impluse hardening4.Hacksaw blade: HSS, Bi-metal, ... useful and long lasting using life12.Saw blade:carbon steelProduct Details:Product Dimensions: 12"Material: Aluminium handleSurface Treatment:customizeColor:Silvery ... paymentUsage:Widely used for wood,pipe,ect cutting 12"Square Tubular Frame Saw With Aluminium Handle