This is the Hobbico Builder's Triangle Set. These triangles were developed specifically to deal with the measuring tasks encountered during airplane assembly.
- Two triangles are included - 30/60° and 45° - both made of clear, durable plastic
- Interlocking feature allows them to stand alone to create an angle guide for squaring in two dimensions
- The 30/60 degree triangle features inch/metric scales, a centering gauge and a corner cutout for perfect 90 degree alignment
- The 45 degree triangle includes an inch scale, a protractor and a convenient balsa thickness gauge