Aluminium 300mm Tri Scale Ruler for Engineers & Architects

Aluminium Tri Scale Ruler

300mm

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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