LTMS 078008 Stainless Steel Protractor 180 Degrees Angle Ruler Finder 140mm Metric Durable Metal Adjustable General Measuring Tool

Protractor is made of sturdy stainless steel, permanently engrave markings , durable with long service life. Double graduation from 0-180 and 180-0 degrees two-way marking and scale marking on the bottom edge of the semi-circle dial head. This protractor ruler has a 145mm/approx 6" adjustable protractor ruler arm that can be held in place with the knurled locking nut; quickly and easily identify angles. The ruler protractor is suitable for setting bevels, draw radial lines, measuring and marking angles. The protractor ruler arm and the dial head can be disassembled; perfect for school, commercial, home, mechanical work, woodworking applications etc.