Help to optimize machine performance and streamline operational efficiency with precision tool holders and durable replacement cases from Grainger. Each tool holder is designed to carry out a specific application-choose from a variety of machine-mount styles to fit industry standard tool posts. Hard-shell tool cases feature as many as 40 pockets or loops for tool carrying and storage. You'll also find tool pouches, cell phone holders and other tool carriers you can clip on your belt. Shop Grainger first for precision tool holders and durable replacement cases.