With the Metabo hss core drill set, you cut cleanly through solid steel, cast steel, and non-ferrous metals without time-consuming pre-drilling. By removing only the outer ring of material, you reduce drilling time and save valuable power. This 6-piece set gives you key cutter diameters of 14, 16, 18, 20, 22, and 26 mm with an effective working length of 30 mm, making it ideal for thick-walled beams and structural profiles. The standard 19 mm (3/4") Weldon shank ensures a slip-free grip in your magnetic drill for solid power transfer. Use the included centering pilot pin to position every hole accurately.