62+ free tools for mechanical design, manufacturing, GD&T, thermal systems, and shop-floor work. Browse by category or jump straight into the tool you need.
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Beams, bolts, springs, gears, bearings, and core ME calculations.
Pneumatic and hydraulic cylinder forces and system sizing.
Welding, stamping, lathe, milling, drilling, and grinding processes.
Cutting speed, feeds, RPM, cycle time, and tap drill charts.
Clamping, locating pins, tolerance stack-up, and gauge R&R.
True position, fits, ISO tolerances, and surface roughness.
Bend allowance, forming, punch & die, and metal weight/price.
Heat exchangers, flow type, vibration, and thermodynamic cycles.
EV battery sizing, motor efficiency, solar and wind calculators.
Scientific calculator, unit converter, world clock, and translator.