Starrett ProSite Miter Protractor Angle Finder with Two Laser Engraved Scales - Ideal for Carpenters, Plumbers, and DIY Home Improvement - 12 Aluminum - 505A-12

(264 Reviews)

Price
$53.73

Quantity
(10000 available )

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365 Ratings
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Reviews
  • orestes sanchez

    > 3 day

    Easy to to read

  • logan paul prokopowich

    > 3 day

    Great tool!

  • Neil B.

    11-06-2025

    liked it for the one time I used it for and worked great!

  • Jimmy G.

    > 3 day

    Too expensive for not measuring outside corners. Waste of money. Buy the flat more expensive one instead. Why did they made a dumb protractor like this one?

  • Kindle Customer

    > 3 day

    This is just a very nice tool, well made, hefty, comes with a carrying pouch for protection and it has that old school feel, not some flimsy cheapo tool.

  • J. Hruby

    > 3 day

    Look, lets be blunt. No matter how good your hotshot framing and drywall crews are, even new construction is never square. And in old houses, it just gets worse. And this doesnt even take into account irregular angled walls that are anyones guess.

  • Tom Brown

    > 3 day

    nice quality tool our shop uses for pipe fitting and general steel fab.

  • slowsheep

    > 3 day

    Great tool for my crown molding/trim work and came in handy while building a ramp for my shed.

  • FREDERICK FRANZELLA

    > 3 day

    Great tool to have for precision miter cuts. A must have this tool is so unbelievable this is great for tight spaces. I have this in three different sizes.

  • Grand House

    Greater than one week

    I love this tool. It helps so much when installing trim. No wall is ever a perfect 90 degree or 45 degree angle, this tools takes the guess work out of it. Its also very well made. The numbers are lasered into it so they wont scratch off, which is great because its stored in my work truck.

The Starrett 300mm (12")0 Aluminium Miter Protractor is part of the popular ProSite 505 Protractor family. The 5-in-1 combination protractor performs miter cuts, single cuts, compound cut conversion table, protractor, and roof pitches. It takes error-prone calculations out of the process of miter cuts. Simply set your saw to the angle that you read - upside down or backward, the reading is always correct. This easy-to-use tool has two laser engraved scales that perform as a protractor on the reverse side of the tool and as a roof pitch with the tool face down. The inner scale and outer arrow show the angle for a miter joint, while the inner arrow and outer scale provide the angle to fit a single workpiece to an angle. The ProSite Protractor saves time and reduces waste. It’s ideal for carpenters, plumbers, and all building trades as well as invaluable for home use. Starrett tools are made to the highest standards of quality and workmanship and meet or exceed the accuracy and performance requirements of national and international standards.

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