Professional quality triangular scales are 6 sided with 12 sets of ratios. The three models cover most professional and student needs.

Ratios included are:

#402 - 1 ;100, 20, 250, 300, 400, 500.
#403 - 1:20, 25, 50, 75, 100, 125.
#409 - 1 ;25, 5, 10, 20, 50, 100.

These 45 Degree Set Squares from Kent are made from clear and durable plastic, which is flexible and professional quality.

Ideal for technical drawing or design work, they are available in both 45 and 60 degree options and are supplied a plastic which is great for storage.

With perspex on both sides of the Kent Double Sided T-Square, it can be used by both left and right handers.

Quality oval scale rule with precise division ratios on both sides, 30cm.
Different models to suit various technical requirements.

#61M - 1:1, 2,5,10.
#62M - 1:1, 5, 10, 100, 20, 200, 50, 500.
#63m - 1:1, 10, 20, 200, 25, 250, 50, 500.