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        "title": "Mars Comfort Masterbow Compass",
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        "description": "\u003cp\u003ePrecise circles depend on mechanical stability, not just careful handling. The Mars Comfort Masterbow achieves this through solid metal construction and a spring-bow head that maintains consistent pressure throughout rotation. A center wheel provides fine adjustment control, letting you dial in exact radius measurements without the slippage common to cheaper compasses. The hinged leg joint moves smoothly while staying rigid under drawing pressure, and the needle shoe anchors securely without wandering across the paper.\u003c\/p\u003e\n\u003cp\u003eTechnical drafters and advanced students work with this compass because it eliminates the frustration of circles that start precise and drift oval. Maximum diameter reaches approximately 5½ inches, sufficient for most architectural details, mechanical drawings, and geometric constructions. The 551 40 WP includes the compass with spare lead for immediate use. The 551 02 extends capability further with an extension bar for larger circles, universal adapter for holding different drawing implements, and spare lead. Both configurations deliver the mechanical precision that transforms circle-drawing from careful struggle into controlled, repeatable craft.\u003c\/p\u003e",
        "published_at": "2025-10-27 21:30:43",
        "created_at": "2025-10-27 21:30:36",
        "vendor": "Staedtler",
        "type": "",
        "tags": ["category:Architecture and Drafting","category:Architecture and Drafting\/Drafting","category:Architecture and Drafting\/Drafting\/Protractors and Compasses","family:9142"],
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