Starrett Pro-Site Miter Protractor

Starrett Pro-Site Miter Protractor

Cutting miters accurately is always a challenge. Each time you measure a wall angle and calculate a saw setting, there's potential for error. Starrett's Pro-Site Miter Protractors take the angle calculations out of cutting inside and outside miters, angled butt joints and crown molding. They'll help you create perfect joints every time.

Starrett 505-series Dial

Basic 505-Series Protractors

All three models of the basic 505-series protractors are functionally the same. For cutting a simple miter or angle joint, the saw settings are directly on the tool - use the inside scale & outside arrow for miters and the outside scale & inside arrow for single cuts. If you're cutting crown molding flat on the table of a sliding compound miter saw, measure the angle and use the provided guide chart to set the bevel and miter angles.

What are the differences between the 505-series models then?

• The 505A-12 is a hefty 12" long by 2-1/2" wide by 1/4" thick chunk of aluminum (each leg). It will stand up to the rigors of just about any jobsite. It's made in the USA.
• The 505A-7 is also aluminum, but it's only 7" long. It's just as tough as its bigger brother, but it's small enough to fit in your apron pocket. It's made in the USA.
• The 505P-7 is plastic version of the 505A-7. It fits nicely in your pocket, but probably won't stand up to the tough environment of a jobsite. It's perfect for the home woodworker or DIY home improver. It's made in China.

See the video below for a demonstration of this protractor.

CP505A-12 5-in-1 Protractor

The CP505A-12 is an improved version of the basic 505A-12. Made from aluminum in the USA, it's also 12" long. It does all of the same things that the 505A-12 does, but has added these features.

• The back has an additional protractor that reads 0°-180°-0° & 180°-0°-180°.
• The crown molding chart is mounted on the inside leg of the protractor so you can never misplace it.
• The inside of the other leg also includes a quick reference guide for setting standard roof pitches.

Videos

Starrett 505-series Miter Protractors

Additional Information

Starrett Crown Molding Guide for the 505A-12, 505A-7 & 505P-7

Starrett Crown Molding Guide for the CP505A-12