Steel Protractors are highly useful and accurate tools for setting bevels, transferring angles, and others. A protractor consists of a body or base with graduations 0 - 360º and a blade that can be locked firmly at any angle by the lock nut. Some of them have removable blades with different sizes.
Simple protractor verniers are graduated to every 1 degree but precision models are already graduated every 5 minutes.

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