With 3D printing, there is about a 30% reduction in tool weight, yet it has the equivalent torsional stiffness of a steel ground body tool. Lightweighting can play a big role in large, heavy tools that take a toll on the machine spindle, helping to reduce preventative maintenance. These improvements can be significant when producing aerospace and automotive components, including electric vehicle parts, where existing spindle interfaces are not always ideal for some of the size/weight of tools.