Aluminium 300mm Tri Scale Ruler for Engineers & Architects
Aluminium Tri Scale Ruler
Cast aluminium scale ruler.
6 Individual scales.
Length: 300mm / 12 Inch.
Clearly marked metric graduations.
Scales 1:20, 1:25, 1:50, 1:75, 1:100 & 1:125.
Triangular body for safer cutting and scoring of materials.
Used by architects, engineers & graphic design artists.
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