math tool kits
helix hlx17861 small geometry set
small geometry set includes vital tools for technical drawing . set includes a 6 ruler 5 triangle 30 degree 60 degree 90 degree 3 7 8 triangle 45 degree 90 degree and 4 protractor . the ruler features 1 16 graduations highlighted in a bright color on one side for easy identification and millimeters on the other edge . the triangles have inches with 1 16 graduations and centimeters with millimeters along the other edge . tools are made of plastic . compact set fits in most pencil cases .
helix
helix hlx17861 small geometry set
category other art tools country of origin  components usa or imported warranty information all products come with a 90 day or longer manufacturer warranty warranty length 90 days or longer