The material is solid and sharp -- the main body is made of aluminum alloy, and the blade is sharp and replaceable you don't have to cut the same slope on both branches with a knife, saving time and effort, as in the old, time-consuming way perfect fit of incisions shows maximum contact with cambium, greatly improving survival rateEasy to use - any green grafter can use the tool in minutes without professional guidance.Scope of application - suitable for grafting fruit trees with diameter between 5-20mmProduktbeschreibung Why Choose this tool: 1) Deep Grafting Depth and Large Range of Cutting Diameter of Twigs. 2) Cut an anastomotic interface with high effiency 3) Full Metal Material, Very Strong and Durable, Does Not Rust: The handle and body are made of premium aluminium alloy, it's very durable and comfortable to hold, non-slip, and will not rust in when cleaning or using. 4) The SK5 high-carbon blade will make the cuts smooth to be a perfect fit, improve greatly the success rates. 5) Makes compatible cuts on both scion and root stock.