Professional Compass with Lock -10 Inch Circle – Math Compass, Drawing Compass – for Drafting, School, Woodworking – Metal Precision Bow Compass with Lock， Extra Lead Refills (1 Pack)

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【 Professional Compass/Divider】For math, geometry, art, drafting and drawing, circles up to 10 inches in diameter for Wood Work, Carpentry, Metal Work, Leather Work, Math, Etc

【High Quality】 The compass is made of sturdy metal, the center drive shaft is stable and not as easy to break as a plastic compass, so it can be used for a long time.

【Drawing Compass with Lock】Center wheel prevents unintentional leg movement. This technical drawing set can easily draw small circles without shaking.

【Lightweight and Portable】Everything packaged nicely in reusable clear pouch for easy to carry and store. This compass drawing set is a must-have for students and teachers.

【Application】 This compass geometry set is excellent for use in school, office, woodworking, or at home.,the best circal drawing tool for student , artist , mathematician , carpenter for woodworking, carpentry, metalworking or leatherwork etc