Support

Support Tooldur

Support the development of free engineering calculators and TooldurCAD improvements.

Support page Back to tools

Why support?

Support helps keep Tooldur free and funds new engineering tools.

Engineering calculatorsPractical calculators for tolerances, keyways, tap drills, bolt torque, sheet metal and unit conversion.
TooldurCADA lightweight desktop assistant for machine designers and SOLIDWORKS users.
Technical notesCopy-ready technical drawing notes for manufacturing, surfaces, coatings and assembly.
Project trackingA simple project and task tracking area for technical work.