Geometrical tolerancing

Characteristic Specification Symbol Unicode character Datum needed 3D Rendering for lines 3D Rendering for surface
Concentricity for centre points Location U+25CE Yes
Coaxiality for median lines Location U+25CE Yes
Symmetry Location U+232F Yes
Line profile Location U+2312 Yes
Surface profile Location U+2313 Yes
Circular run-out Run-out U+2197 Yes