HHIP 4401-1596 6" X 6" X 2" Granite Surface Plate, Grade B, 0 Ledge

So smooth, so flat, so heavy. This is a perfect size and a must have for the serious knife maker or small scale machinist. When flat matters, a surface plate is a must! This will outlast me if I take care of it. Great price.

Nice stone. Good price.

As the title says, this was a fabulous purchase and is perfect for my leather work. The photo doesn't show it's thickness as I've countersunk it with just a small amount raised above the desk surface. I will start by saying it's HEAVY. I don't think I realized just how heavy this would be and even lowering it into the cutout compartment area was a huge feat. I will advise that if you intend to do leather stamp work on this it will require something to absorb the shock underneath. Mine is resting on a foam yoga mat like surface in a build in/converted keyboard tray slide out which we reinforced. This photo shows it with the dusty look it had upon receipt but after one quick cleaning it has not had that look any longer. It's very nicely smoothed. The edges are nice, there are no imperfections and this was just a fabulous purchase! Highly recommended.

This is a HHIP12" X 9" X 2" Granite Surface Plate, Grade B, No Ledge. This works very well for my tiny home machine shop. There is no ledge so care must be taken not to drop it or smash your fingers when moving it. Grade B works just fine for my purposes. Size is just right allowing enough space to measure stuff. Price was very good for the quality I received.

Rock Solid! Great packaging! Exactly as described! Top quality granite surface plate!

Received in one day. Looks fine. Best deal I found without looking too hard. The one thing people should know (and the pictures clearly show this) is that all edges are beveled with some of the corners being deeper or a bit inconsistently done. On mine it's very slight. Most likely done so they don't have to worry about chips on the edges. For a sanding surface this will make no difference but for me, square edges woud be preferable. For the price it would be hard to do better if you don't need it for the straight edge. It's well packaged in all-natural wood, paper and cardboard. : ) I find no nicks scrapes or flaws of any kind. I have no way to test for flatness. I am satisfied with my purchase.

Item arrived in a cardboard outer box with heavy plastic strapping, inside was a wooden box. The rock itself is in perfect condition, I have no means of verifying the flatness of the surface, my intent is not a home metrology lab, but a nice flat surface to provide final dressing of woodwork tools. This will do that task very nicely. It’s pretty hefty for its size, nearly 40 pounds, so make sure to be safe when moving it around. I’m quite satisfied with it, for the price.

The smooth side is flat to 0.001" of an inch in 5 vertical and 5 horizontal cross sections and 2 diagonal cross sections from corner to corner and edge to edge with calibrated gauge. rough side is flat to about 0.0015" - 0.002" of an inch with an unfortunate falloff on one corner that is around 0.0035" of an inch on the corner. The taper is two inches from the corner in both direction making an even triangle low gradient from 0.0015 at a diagonal line to the lowest point at the corner 0.0035". This is still exceptional for my use as I only need one side to be perfectly flat. It will not be sitting flat side up during use. They package this block in a quarter inch wooden box with little wiggle room for safe shipping. My block came in perfect condition and as stated by the spec I ordered. The material is genuine black granite, and at least one side is within a super flat spec. Overall I strongly suggest getting this! Specially if you're going to be doing what I am, and decking an engine head at home like a mad man instead of just getting it machined.

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Perfectly flat and smooth

Have yet to test the accuracy, but from first impressions the quality is very good. The product arrived very fast and ahead of schedule. It came with a calibration certificate similar to the sample. Very impressed, for a hobbyist I don't think you can beat the price for the quality.

Heavy but absolutely flat and ideal for my model engineering applications.

Always wanted one, couldn't justify it. When the requirement came up I figured I had nothing to lose and I am pleasantly surprised. Very well packaged and very flat. I ran my .0001" dial on it and it's flat enough for my purposes. The "Ladoratory" Superviser on the included cut sheet agrees :)