We often have customers ask why the installation tools are so expensive compared to the shear plates and split rings. Shear plates and split rings are not easily installed (correctly) without using the designated installation tools. They are engineered tools weighting 5.5 pounds each made with high strength tool steel blades designed to cut a precise groove or dap in wood. The cutting blades are both able to be sharpened and replaced, which can extend the life of the tool indefinitely if properly maintained. Tens of thousands of shear plates and split rings can be installed over the lifetime of a single tool.