Drawing Tools & Kits 20Pc Geometry Set Aluminum Compass,Protractors,Set Square,Ball Pen,Bow-Pen,Erasing Shield etc.for Basic Beginner Engineers and Students.Size:10x4.6x1 inches (red)

Key features

• NEWSOURCE GEOMETRY SET designed by experienced math Germany expert.20Pieces precision geometry compass including compasses ,protractors,set Squares,erasing shield,roller pen，mini sharpener，eraser ,mechanical pencil ,plot pen and other accessories.Combinations compass set for solid and plane.Which satisfies all the demanding requirements expected by professional users of a high-grade draftin instrument.The metal compass geometry also comprises high-quality accessories for perfect drafting resul
• PRECISION GEOMETRY COMPASSES SET：2 professional compasses.Bow-compass with quick-action, It assemblied universal adapter to match pencil drawing bigger circles.Spring compass with adjustable duckbill tracing head.That can be drawing circles well.High legs：Facilitates exact drawing of particularly large radii.Which is a Essential Tools，very thin material Easy to Use in Drawing without the burrs inside of holes.Along with eraser to clear the error lines on the face of drawing
• COMFORT The bow-compass,extension bar and spring compass are made by Aluminum alloy ,stainless steels.Aluminum alloy is the alloy based on aluminum,zinc,copper, the magnesium etc.The main advantages of aluminum alloy include low melting point.good fluidity,easy to shape,process and weld,in addition,it resists to corrosion air,
• HIGH VISIBILITY:Inch and Centimeter Measurements.Quick and easy to read.Sharp. graduations and precise markings perform well on any surface.
• PURIFICATION CASE:Durable compass case with a nice plastic pallet to protect and keep the tools in an orderly place.Case size:10 x 4.6 x 1 inch/ 25.4 x 11.8cm.Everything packaged good in it for easy to carry.