Calloy Tools’ solid carbide round tools from Tooling Group introduced new “Speed-Drill R4” geometry.

It offers 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 non-tangential to the diameter, these proven designs address challenging, high production drilling applications. Tooling options include standard drill and end mill programs for all material groups; special tools include step drills, core drills, reamers, tapered drills, tapered reamers and combination tools (drilling–milling) and provide outstanding cost/performance ratio.


With decades of experience and engineering in precision hole making, Calloytool offers solutions from single tool drilling operations to complete project management for all solid carbide tools. Accuracy and precision are ensured through industry leading innovative design, ultra-modern CNC grinding equipment and a rigorous ISO-9001 quality system.


Calloytool sales and application engineers can assist with tool selection and design support on the best geometry, newest carbide grades and advanced coatings to suit specific application requirements. Rapid and reliable delivery times are backed by decades of experience in the design and manufacture of precision hole making tools.