Like almost everyone else here, I put off buying a premium combination square because of cost, and made do with cheaper combos, simple engineer's squares, various rules, etc. Further, I hesitated because opinions on Starrett's quality varies among machinists and from tool-to-tool. Many prefer Browne & Sharpe or Japanese lines like Mitutoyo. In the end, I finally broke down and bought the Starrett, really as much because it's the only commonly-available premium combination square as for any other reason - and couldn't be happier with it. It is accurate and smooth. It's actually one of those few tools where you feel the quality every time you pick it up. It's a pleasure to use it, so much so that I intend to pick up one of the 6" versions as well.

Hemmed and hawed over the price. Finally had to buy one for a class that didn't want me to use the General I got at Home Depot for a about 1/5 the price. The Starrett is finally worth the money. The quality difference is huge. It will be the last one you buy.

Starrett C33H-12-4R 12-Inch Combination Square with Square Head Only One spends this much money for a square to get accuracy. Starrett is world renowned for accuracy in their tools. However, the first unit shipped by Amazon was not square when checked against 3 different machinist's squares. Amazon promptly replaced the first unit and the 2nd model is square as expected. Thanks, Amazon.

I recentley ordered the Starrett comb. square that I needed in my furniture shop for a long time as my old square was not accurate to say the least. I find the new Starrett everything I had hoped for, right on the money for 90 and 45 degrees, well machined and marked, and smooth to adjust. My only regret is that I did not get one sooner.

Excellent workkmanship and accuracy. Starrett measuring tools are the best obtainable and can be handed down for generations. Best of all, they are made in the good 'ol USA!