Laser protractor

A laser protractor, also called a goniometer, is used to measure the angles of the blade edge. It is especially important if you need to find out what angle your knife's blade has before sharpening. Likewise, after sharpening, you can check how you control sharpening on sharpening stones. The innovated GM PRO goniometer has a continuously adjustable magnetic blade port. The angle scale can also be continuously adjusted. Everything is more accurate than its predecessor. Strong magnets will allow for precise and comfortable measurement. To protect the blades, we recommend covering the magnets with thicker protective tape. The laser generator is powered by a rechargeable built-in battery. It is charged using a standard mobile phone charger with a USB type C connector. The charger is not included.