Draftex Triangular Scale Rulers. Available in 4 different sets of ratios, each encased in a hard, protective, plastic cover.
- Made in ABS Plastic
- Colour Coded Centre Strip
- Hard Plastic Carry Case
- TSR1 Ratios 1: 20,25,50,75,100,125
- TSR2 Ratios 1: 20,25,33/3,50,75,100
- TSR3 Ratios 1: 2.5,5,10,20,50,100
- TSR4 Ratios 1: 100,200,250,300,400,500
For Oval Scale Rulers Click here
Draftex Triangular Scale Rules feature one graduation per edge making 6 scales in total.
The centre section of each side is colour coded to make identification of the scale quicker and easier.
Most popular graduations are covered over the 4 types available.
Draftex Triangular Scales come with a sturdy protective plastic sleeve.
Triangular scale rules have traditionally been preferred for the reading of drawings while oval section types are popular for drawing.