General Tools 18 Round Head Stainless Steel Angle Protractor, 0 to 180 Degrees, 6-Inch Arm
318-18 Features: -Adjustable protractor arm locks into desired position with knurled thumb nut. -Permanently etched graduations from 0 to 180º in opposite directions. -Angle: 180.0° [Max]. -Dial Reading: 0-180-0. Product Type: -Protractors. Generic Dimensions: -Blade Length: 6 in. -Head Length: 3 3/8 in. -Head Width: 2 in. Dimensions: Overall Product Weight: -0.16 Pounds.