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.

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

Made from durable, professional quality plastic, Kent Protractors can be used for a variety of mechanical and engineering related work, as well as in schools for maths and geometry. 

The clear plastic allows you to see through with ease, the bevelled edge ensures smooth line making and the millimetre markings make measuring a breeze.

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.