505P-7 Miter Protractor 12255

505 Protractors
7'' (175mm) Hardened Plastic Miter Protractor

The 175mm (7") Plastic Miter Protractor takes error-prone calculations out of the process of miter cuts. Tool is ideal for carpenters, plumbers and all building trades that require the measuring and transferring of angles and invaluable for home use.

Product Testimonials
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  • Easy-to use tool has two laser engraved scales
  • Miter cut scale transfers readings directly to the miter saw for miter joints
  • Single cut scale transfers readings directly to the miter saw for butt joints
  • Protractor saves time and reduces waste
  • Made from durable 7" hardened plastic


  • Made in America: No
  • Type: Dial Reading Miter Protractor
  • Material: Plastic
  • Length (in): 7"


    505p-7 Crown Molding User Guide (Form-967)

    This document will allow you to achieve a Perfect Crown Molding with your Starrett 505P-7!

    505p-7-miter-saw-protractor (Bulletin 660)

    Constructed from durable engineered plastic and economically priced, the 505P-7 eliminates calculations, reduces errors and provides greater accuracy for miter cuts.

Product Testimonials

    Write a product review
    • Bob F. (11/16/2018)
      I watched a video on YouTube from Finish Carpentry TV about how he gets such tight miters on his job as a finish carpenter. After watching the video, I ordered one to help me with my basement remodel. I received the 505P-7 Miter Saw Protractor in the mail and decided to give it a try. I have always struggled with both inside and outside miters while doing finish trim. I have all the best tools and gear for construction and carpentry, but my miters always needed extra attention to make them look good. This tool is amazing! Nothing in any house has perfect right angles and this tool allows you to figure out that one or two degree difference on the finished edge that sets your work apart from the rest. Whether you are a professional or a DIY homeowner, this tool will help you make professional looking miters that require little to no attention prior to painting or staining the trim. (No more hiding bad miters with caulking or putty.) I have used this tool on baseboard, crown moulding, window trim, quarter round and I even used it to figure out the angles on my outside deck rails and stairs. I highly recommend this tool for any carpenter or wood worker that wants to step up their game and set themselves apart from shoddy looking miters.

California Proposition 65 Warning

    WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov