MK Tools’ solid-carbide round tools from Monaghan Tooling Group introduces new “Speed-Drill R4” geometry, reportedly offering unparalleled cutting speeds and unprecedented tool life in gray cast iron, ductile iron and forged steel—all popular materials in automotive engine and chassis components. With a new corner radius design, which is tangential to the drill point but nontangential to the diameter, these proven designs address challenging, high-production drilling applications.