Deli Stainless Steel Multifunctional Drafting Drawing Compass set Math Geometry Circles Tool pencil compass School Supplies

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Deli Stainless Steel Multifunctional Drafting Drawing Compass Math Geometry 2/4/5/6 pcs/set Circles Tool Durable School Supplies

Compass body (Can be used as a sub-rule) Duckbill is a tool for drawing ink lines when drawing. It is often used in engineering drawings to draw straight lines in ink drafts. When in use, you should not dip the ink directly. Use the pen at the gap between the mouth pen, and adjust the thickness of the line segment by adjusting the screw on the front of the pen Product Features 1. Practical | Meticulous Build Compass, which is both a lever and a wheel, is made of metal, practical and accurate 2.Classic shape, accurate accuracy High-end classic appearance design, comfortable feel, fine craftsmanship, error is less than international standards, special for engineering technology 3.Metal structure, high quality Wear-resistant metal material, not easy to bend and deform Metal Material | Good quality 4.Simple design, comfortable feel Simple design, plus metal texture, concave and convex shaft, easy rotation, easy drawing