This Round Head Protractor is a great tool for machinists, carpenters & woodworkers. Constructed of durable stainless steel, the protractor with it's 6" adjustable arm is ideal for setting bevels, taking measurements & transferring angles. The 3-3/8” x 2” head makes it possible to anchor the protractor against objects to hold it in place as you take measurements. This square head protractor has a 0 to 180° semi-circle scale in forward & reverse directions to measure all angles. Measure an angle with the small stainless steel arm which glides smoothly for precise alignment. Use the knurled thumb nut to lock the arm into place as you take measurements. It's stainless steel construction gives it strength, durability & the ability to resist rust.
Product Title Head Size Arm Length Overall Length Model # General Tools Stainless Steel Protractor ~ Round Head 3 - 3/8" x 2" 6" 7 - 3/4"18