As described in perfect condition, shipping was prompt and arrived on the date specified. The best part is this item was literally $50.00 cheaper than all other sellers on Amazon. I’d definitely order from this seller again. Thank you!
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From the brand
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Starrett is a global manufacturer founded in 1880 in Athol, Massachusetts. The hallmark of Starrett quality and innovation is rooted in America. We are proud of our heritage and continue to make products in the USA using globally sourced materials and components from our factories and suppliers.
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From the manufacturer
The L.S. Starrett Company, founded in 1880, manufactures more than 5,000 variations of Precision Tools, Gages, Measuring Instruments and Saw Blades for industrial, professional and consumer markets worldwide. Starrett, a manufacturer of fine precision tools in industry for over 130 years.
Starrett CP505A-12 300mm (12") Aluminum Combination Protractor
The 300mm (12") Aluminium Combination 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.
Watch out for FAKES!
There are likely quite a few fakes in circulation from Amazon and elsewhere. I ordered one from a third-party seller with fulfillment by Amazon, but upon close inspection after receiving the item, it turned out to be a fake. I purchased a second that was actually "sold by" - not just "fulfilled by" - Amazon and from inspection I'm sure it is genuine. Please see my photos with the details. The fake was very close in almost every way. Without a real one next to it, it was a challenge to identify. If I had bought it as an off-brand out of a bargain bin, I probably wouldn't have had any complaints. It still looked pretty functional. I wanted the real tool for this though; I just couldn't get past the concern that I would end up with less precise finished miters and/or more rework with the fake. The fake I got appeared to be pretty close on accuracy though. Differences: Laser Engraving- Real has true laser-etched dial with consistent alignment of markings and numbers. The laser actually "digs" tiny trenches with a little roughness at the edges of each engraved "trench". Feels a little like sandpaper when sliding finger across markings. Fake had some sort of printed markings deposited on top of the surface with some of the digits poorly aligned. Markings could be felt, but were much smoother than laser engraved. Would expect less precision in this method of manufacture. Fit & Finish- Real has a bold yellow inlay with a precise geometry that lays in flush as intended. Fake had a little more drab, somewhat translucent, yellow inlay with less precise geometry that didn't entirely lay in flush as intended. Could just barely see some the structural ribs in the plastic behind the yellow inlay on the fake because of the inlays translucency. Pivot Screw- Real has a pivot screw head that is ø0.65" (21/32") [16.5mm] in diameter. Fake had a pivot screw head that was smaller at ø0.60" (19/32") [15.2mm]. Package- Real had a Proposition 65 warning sticker on the back and was not stapled closed. Fake was stapled closed and did not have a Proposition 65 warning sticker. Printing on fake was extremely close to that of the real article. Fake happened to have some barcode stickers on the exterior, but still had the same original barcode inside the package. Some of the details may be different on other fakes. These are just the most discernible discrepancies I noted on this specific fake. My rating is based entirely on the legitimate product I received, not on the fake.
Top reviews from the United States
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- Reviewed in the United States on May 21, 2025Size: 12" LengthStyle: Aluminum Dial Reading MiterVerified Purchase
- Reviewed in the United States on April 29, 2025Size: 7" LengthStyle: Plastic Dial Reading MiterVerified Purchase
- Reviewed in the United States on May 8, 2020Size: 7" LengthStyle: Plastic Dial Reading MiterVerified Purchase
There are likely quite a few fakes in circulation from Amazon and elsewhere. I ordered one from a third-party seller with fulfillment by Amazon, but upon close inspection after receiving the item, it turned out to be a fake. I purchased a second that was actually "sold by" - not just "fulfilled by" - Amazon and from inspection I'm sure it is genuine.
Please see my photos with the details. The fake was very close in almost every way. Without a real one next to it, it was a challenge to identify. If I had bought it as an off-brand out of a bargain bin, I probably wouldn't have had any complaints. It still looked pretty functional. I wanted the real tool for this though; I just couldn't get past the concern that I would end up with less precise finished miters and/or more rework with the fake. The fake I got appeared to be pretty close on accuracy though.
Differences:
Laser Engraving- Real has true laser-etched dial with consistent alignment of markings and numbers. The laser actually "digs" tiny trenches with a little roughness at the edges of each engraved "trench". Feels a little like sandpaper when sliding finger across markings. Fake had some sort of printed markings deposited on top of the surface with some of the digits poorly aligned. Markings could be felt, but were much smoother than laser engraved. Would expect less precision in this method of manufacture.
Fit & Finish- Real has a bold yellow inlay with a precise geometry that lays in flush as intended. Fake had a little more drab, somewhat translucent, yellow inlay with less precise geometry that didn't entirely lay in flush as intended. Could just barely see some the structural ribs in the plastic behind the yellow inlay on the fake because of the inlays translucency.
Pivot Screw- Real has a pivot screw head that is ø0.65" (21/32") [16.5mm] in diameter. Fake had a pivot screw head that was smaller at ø0.60" (19/32") [15.2mm].
Package- Real had a Proposition 65 warning sticker on the back and was not stapled closed. Fake was stapled closed and did not have a Proposition 65 warning sticker. Printing on fake was extremely close to that of the real article. Fake happened to have some barcode stickers on the exterior, but still had the same original barcode inside the package.
Some of the details may be different on other fakes. These are just the most discernible discrepancies I noted on this specific fake. My rating is based entirely on the legitimate product I received, not on the fake.
Images in this review
- Reviewed in the United States on March 15, 2025Size: 7" LengthStyle: Plastic Dial Reading MiterVerified Purchase
- Reviewed in the United States on October 16, 2024Size: 7" LengthStyle: Plastic Dial Reading MiterVerified Purchase
- Reviewed in the United States on January 20, 2025Size: 7" LengthStyle: Aluminum Dial Reading MiterVerified Purchase
- Reviewed in the United States on December 13, 2024Size: 7" LengthStyle: Plastic Dial Reading MiterVerified Purchase
- Reviewed in the United States on January 25, 2007Size: 7" LengthStyle: Aluminum Dial Reading MiterVerified Purchase
Top reviews from other countries
- Amazon CustomerReviewed in Canada on February 11, 2021
Quality Product
Size: 7" LengthStyle: Aluminum Dial Reading MiterVerified Purchase -
Petra B.Reviewed in Germany on November 22, 2024
Toller Helfer
Size: 7" LengthStyle: Plastic Dial Reading MiterVerified Purchase - David G TaylorReviewed in Australia on June 3, 2022
Very handy little gadget. Great for setting up compound mitre saw.
Size: 7" LengthStyle: Plastic Dial Reading MiterVerified Purchase -
Frank MadridReviewed in Spain on February 3, 2014
Excelente y suficiente para medir ángulos
Size: 7" LengthStyle: Plastic Dial Reading MiterVerified Purchase - Mikebee1050Reviewed in Australia on April 2, 2021
Incredible accuracy
Size: 7" LengthStyle: Aluminum Dial Reading MiterVerified Purchase
