Scola-Tec inexpensive drawing aid.
Scola-Tec 30/60 set square, unbreakable with borderline guides at 10 and 15 mm.
Scola-Tec unbreakable 45 set square with cross hatching and lettering guidelines.
Eletro stencil – perfect for drawing electrical symbols. Has over +30 electrical symbols.
Orthographic projection stencil include arrowheads, linespacing pinholes.