Blind Nut / Blind Bolt tooling from MRO Tools are available in a variety of sizes and are manufactured with hardened tool steel. Blind Nut / Blind Bolt tooling include hydraulic power guns and hand installation tools. MRO Tools offers a large selection of components, including anvils, chucks and mandrels. Bind Bolt / Blind Nut Driving Tool Sets include the chuck, a mandrel and an anvil. By utilizing a specific chuck BG series guns can drive blind bolts, blind nuts and other fasteners from Hi-Shear®.