Staedtler · Scale rulers
Staedtler Mars 561 Triangular Scale Ruler, 300 mm, Version 4
This Staedtler Mars 561 triangular reduction ruler is the 300 mm version 4. It carries six scales: 1:100, 1:200, 1:250, 1:300, 1:400 and 1:500, for reading and preparing drawings at the corresponding ratios.
Useful features
At a glanceTriangular ruler
Triangular ruler: Six scaled edges.
Version
Version: 4.
Length
Length: 300 mm.
Colour-coded grooves
Colour-coded grooves: Easier scale identification.
The useful features
- Triangular ruler: Six scaled edges.
- Version: 4.
- Length: 300 mm.
- Colour-coded grooves: Easier scale identification.
The useful details
Know what
you’re getting.
This Staedtler Mars 561 triangular reduction ruler is the 300 mm version 4. It carries six scales: 1:100, 1:200, 1:250, 1:300, 1:400 and 1:500, for reading and preparing drawings at the corresponding ratios.
The ruler is made from solid white plastic. Colour-coded grooves help distinguish the scales, and the triangular profile gives each scale a dedicated edge. Check the listed ratios before ordering because the Mars 561 range has different versions.
A closer look