Identify Me Please!

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Across
  1. 4. This is one of the most important tools in drawing and comes in various grades.
  2. 5. It is a semi-circular instrument divided into 180 equal parts, each of which is called a degree.
  3. 6. a drafting machine is a device which is mounted to the drawing board
  4. 7. Its main function is to reproduce the measurements of an object in full size, reduced size, and enlarged size.
  5. 9. contains pre-dimensioned holes in the right scale to accurately draw a symbol or sign.
Down
  1. 1. This is used to clean the dirt off the drawing.
  2. 2. a smooth flat rectangular board on which paper, canvas, etc., is placed for making drawings
  3. 3. it is a three-sided ruler, which typically has two equal sides meeting at a 90 degree angle.
  4. 8. this drawing instrument is used when drawing arcs and circles.
  5. 9. guiding triangles when drawing vertical lines.