While the Pro-Trac looks like a conventional protractor, its black and red layers unlock and pivot past each other on a trunnion-style slide to reveal two stacked protractors with unique capabilities. In the closed position, the tool is useful for measuring and marking angles up to 90°. Or rotate the layers to find and mark angles up to 140°. With the red protractor oriented 90° to the black protractor, Pro-Trac becomes a center finder for dowels to up 1-1/4” in diameter and smaller square stock. A line of evenly spaced holes on the red layer reveals the tool’s fourth use as a line-drawing tool. The holes fit Pica-Dry Automatic or similar mechanical pencils for drawing straight, consistently spaced lines when Pro-Trac is slid along a workpiece edge.
Swan Tool Group Tyton Pro-Trac Details:
- Functions as four tools is one: protractor, center finder, angle-setting square and line-marking tool
- Dual protractor layers pivot open easily on a trunnion-style slide mechanism
- Designed by woodworker and social media personality Izzy Swan
- Laser-etched markings are easy to read
- Thick, sturdy anodized aluminum construction
- Large knurled thumbscrew is comfortable to adjust
- Handy for laying out angles on narrower stock and face frames
- Mid-point geometry helps you find the center points of dowels as well as smaller square stock for mounting between lathe centers
- Mark consistently spaced lines up to 2-1/2” from the tool’s center
- Sturdy EVA storage tray protects tool between uses
