Developer's DescriptionBy Web MachinistQuickly and easily calculate the dimensions of both Imperial (English) Spur Gears and Module (Metric) Spur Gears.Quickly and easily calculate the dimensions of both Imperial (English) Spur Gears and Module (Metric) Spur Gears. Including Outside Diameter, Pitch Diameter, Whole Depth, Root Diameter, Addendum, Dedendum, Circular Tooth Thickness, Circular Pitch, Clearance and Basic Circle.