Profesional Compass for Geometry Up to 18 inch Diameter,Geometry Precision Tool for student,Drawing Tools & Drafting Kits for Engineer,Circle Drawing Tool,Geometry Set,Math Geometry Kits Set 10.6 oz
- ...rasing shield along with eraser clearing the error on the face of drawing sheet. Aluminum compass and spring compass have good coat performance. They can draw the circles from small to bigger range to meet design requirements.
- VERSATILE -With an extension beam for map-making of teaching and studying drawing drafting engineering architecture,woodworking. for bisecting angles.constructing,geometrical shapes.including perpendicular lines,parallel lines,triangles,circles,rectangles and any geometrical shapes. 45X90 and30x60 degree set square and 6'' protractor available..
- ALUMINUM compass and spring compass.If they displace some instrument parts of paiting which can be extended for their working functions.For exchanging other parts,use the arm staff,it draws bigger circles. Materials: alloy aluminum.plastic ABS.stainless steel..As an original source to manufacture this compasses for 16 years.The maths materils are conbination with T-square、scale ruler.They fulfill the technical requirements for widely using..