Navigation Protractor Triangle With Divider, For Survey Drawing, Feature : Accuracy Durable, Corrosion Resistance

The Protractor Triangle with Handle provides a straightforward method of plotting and performing chart work. 8½” sides x 12” hypotenuse Protractor scale allows easy alignment with chart meridian in any direction 90 degree angle helps determine lines of position Made from clear durable vinylite The Protractor supply with rexine pouch for safe storage and has a lifetime warranty.Every seasoned navigator has a pair of these classic 7-inch (170 mm) one hand brass dividers on his chart table. They can be opened and closed with one hand while performing chart work. The divider with rexine pouch for safe storage and has a lifetime warranty.