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Incra GSQR7 Guaranteed Square 7-Inch Precision Square | 
| Brand: Incra
Category: Home Improvement
Buy New: $49.00
Rating:  13 reviews
Sales Rank: 19530
Media: Tools & Hardware
Shipping Weight (lbs): 0.9
Dimensions (in): 9.9 x 7.5 x 1.6
MPN: GSQR7
Model: GSQR7
UPC: 751922340193
EAN: 0751922340193
ASIN: B0000639X2
Availability: Usually ships in 1-2 business days
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| Features:
| • | 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 |
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| Editorial Reviews:
Product Description
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.
Amazon.com Product Description
The Incra's Guaranteed Square 7-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.
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| Customer Reviews: Read 8 more reviews...
 Not as described November 22, 2008
Most people who buy a precision square do not have any means of checking to see if it is precise as the manufacturer claims. So, we have to rely on the reputation of the manufacturer and on the recommendations and critiques of others. Before I ordered the GSQR7, I read the reviews here on Amazon. I was persuaded that it was an excellent product (although I had not previously heard of Incra). So, I ordered it.
It arrived very quickly via the free shipping.
Right out of the box I was a little surprised to find scratches on the square. I concluded that these were probably the places where the electrodes were attached during the anodizing. The next realization was that, despite the prominent claim of the manufacturer that this is a "one piece design", it certainly is not. I counted 12 pieces in all (including 4 bolts, 4 nuts and a decal) and I can't imagine anybody honestly describing it as having fewer than 3 pieces - the main "L", and the two red handle pieces. Certainly this would be less expensive to manufacture than a one piece design, but it's not what I thought I was buying.
I also noted that there is a threaded hole in the blade of mine, which is not shown in any of the photos on the product package nor in the photos shown here on Amazon.
The manufacturer has made two claims
1) It's a one piece design.
2) The blade is accurate to within 1/1000 of an inch throughout.
The first claim is clearly untrue. I don't have any easy way to verify the 2nd claim.
The product did not come with any documentation other than a little card which says "Certificate of Accuracy : Incra guarantees the accuracy of this precision instrument to conform to all manufacturer's specifications. Angular accuracy is guaranteed to be less than 0.001" maximum deviation from nominal at any point along the full length of the blade."
However, no "manufacturer's specifications" were supplied with the product. Also, it is interesting that they specify that only the "blade" is accurate, not the handle - and yet the handle is flush with the blade on the lower side (so that inaccuracy of the handle will affect the results in actual use) and one illustration on the box demonstrates the product being used in a configuration which relies on the accuracy of both the upper surface of the handle and the blade.
So, I'm disappointed. Perhaps everything is just great. Perhaps the handle is just as accurate as the blade. Perhaps the entire unit is square on every surface to the specified 0.001". I simply don't know.
If Incra is going to make a precision instrument, then they need to make precise statements about it.
 A great asset to my shop June 22, 2008
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 saw, drill press, circular saw, router table, etc.). While they are expensive I learned in an engineering class that you have to pay more for better tolerances and the expense here is well worth it over a cheap square. Yet there are more expensive squares out there and the Incras are "guaranteed" so if they are not perfect they will make it perfect. If you purchase these I don't see how you will be disappointed as they are one of the best asset you can buy for quality work.
Tired of Inaccurate Squares January 29, 2008
I am tired of inaccurate try-squares. Most are a bad joke. This square is the real deal. It is accurate like the Starrett. When you set up your tools, you can count on this square to be precise.
The best tool in the shop March 12, 2007
1 out of 1 found this review helpful
Having a precise setup is a must for woodworking. I have used this to square up table saw blades, jointer table, miter gauges and all other fixtures, fences and jigs. This is definitely a must and worth the money.
Incra Precision January 1, 2007
2 out of 2 found this review helpful
Solid, precise, a bit spendy, but worth it. I have this one and the 45 deg. 7" model. This one is rather large to keep in a shop apron, but is excellent for setting up machines which is the main reason I purchased it. Get the pair. Set up your machines to be dead on. You wallet will soon recover and life in the shop will be good.
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