Incra GSQR5 Guaranteed Square 5-Inch Precision Square
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- Precision Square features advanced design and fabrication
- 1/4-inch solid alloy body and the 3/4-inch thick integrated alloy handle
- Angular maximum deviation from nominal of less than 0.001 inches
- Won't get bent out of shape when you drop it
- Trademark gold and red hardened anodized surface
These 45° and 90° squares are so precise, they come with a certificate of accuracy that guarantees each one has an angular maximum deviation from nominal of less than 0.001" at any point along the full length of the blade. One-piece, 1/4" thick anodized hardened aluminum alloy blades ensure long-term accuracy.
The Incra's Guaranteed Square 5-Inch Precision Square features an accurate, advanced design and fabrication, and carves out a single monolithic blade from a solid slab of hardened aluminum. This means you won't see the alignment errors that can happen when a separate blade is manually assembled to a separate handle, as in the more common two-piece design. Solid, rugged and beautiful, the hefty construction of the 1/4-inch solid alloy body and the 3/4-inch thick integrated alloy handle just feels right in the palm of your hand. Unlike conventional two-piece designs, the layout angle of this rigid, one-piece body won't get bent out of shape when you drop it. The trademark gold and red hardened anodized surface is not only durable, but beautiful and it won't tarnish like brass.
These 45- and 90-degree squares are so precise that they come with a certificate of accuracy that guarantees each one has an angular maximum deviation from nominal of less than 0.001 inches at any point along the full length of the blade. Set cutting tools to the perfect angle, while a support lip holds the tool on the edge of the work piece for marking and layout. Combine this with modern, functional styling and you've got a tool that is worthy of the most prominent location in your display cabinet.
Title: Incra GSQR5 Guaranteed Square 5-Inch Precision Square
Sales Rank: 11128 in Tools
Manufacturer: Incra, Model: GSQR5
Package Dimensions: 10 x 7.3 x 1.7 inches, 0.75 pounds
- A great asset to my shop.
- I have no way to test this tool except to use it to calibrate my tools and if the woodworking job comes out perfect then I know this tool was dead on for what I use it for. I have 4 Incra guaranteed squares(5" square, 5" 45 degree, 7" square, and 7" 45 degree) and absolutely use them religiously to calibrate all my tools (table saw, jointer, planer, miter saw, band More reviews
- Excellent tool
- You do indeed get what you paid for. It seems to be dead-on as my wood joints come out tight. The lip works great for marking boards, and its perfect for tuning tools. Incra offers a lifetime accuracy guarantee on their website, and even claims ordinary drops can't affect the angle. And I drop alot of tools. More reviews
- Great Tool- decent price
- I have owned this square for almost a year now, and I find myself using it more and more with each passing project. It, along with most other Taylor Design Group products, is well thought out and has superb machining. I took this tool to work and put it on a surface plate, and it is indeed accurate inside and outside to within More reviews
- A square is not always square!
- I once thought that when you bought a square and took it home, it was square. I just got this square today, and I am surprised with its quality and accuracy. I used it to check carpenter's squares, tri-squares, carpenter's speed squares and a precision Starrett branded machinest's square. Each was off up to .010" except the Starrett, which came in a close second this More reviews

