The Duratool G400K Grafting Tool comes with three shape blades: U, V and Omega This hand-held, manual grafting tool is very easy to use and can do grafts on plants up to 13mm in diameter. Hold the stem of the stock plant in the grafting tool and squeeze the handle to make the cut. Repeat this step to get a piece of grafting stock from the donor plant. Take care to ensure the “groove” is cut into the stock plant. Once you have joined the 2 pieces of plant material wind a piece of budding and grafting tape around the join to ensure a successful graft. The front of the tool has light duty pruning blades that enable the user to cut off any useless branches or leaves.