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🪨 Flat Out Essential: Precision That Elevates Your Craft
The HHIP 6" x 8" x 2" Granite Surface Plate Grade B offers industry-grade flatness with ±0.0001" accuracy, certified to meet Federal Specifications GGG-P-463C. Crafted from durable, non-magnetic granite, it provides a stable, reliable surface for precision measuring, calibrating, and assembling tasks favored by professionals and serious hobbyists alike.


















| ASIN | B08BXK5C68 |
| Best Sellers Rank | #18,928 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Calibration Surface Plates |
| Date First Available | June 26, 2020 |
| Item Weight | 11 pounds |
| Item model number | 4401-1597 |
| Manufacturer | HHIP |
| Product Dimensions | 7 x 9 x 3 inches |
A**Y
Stoned
Nice stone. Good price.
A**R
Great price, dead flat, high quality.
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.
T**R
Rock Solid!
Rock Solid! Great packaging! Exactly as described! Top quality granite surface plate!
M**N
HHIP 12" X 9" X 2" Granite Surface Plate, Grade B
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.
S**L
Granite
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.
K**S
Excellent quality and perfect for a leather stamp work base
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.
S**L
Good little surface plate for the DIY handyman
Nice grade of granite slab for my primary home use of block sanding and refurbishing small machined part surfaces with fine sandpaper. My slab appears to be very flat, checking it with a precision ground machinist`s parallel bar. I wiped off the slab with a water based cleaner and waxed the top surface and sides with Meguire`s cleaner car wax. The bottom of the slab is, as expected, rough cut and mine sits flat. Good value for the price.
M**Y
Very Nice, But…
The product I received had a large chip on one corner, and a small chip on another corner. I am not sending it back, and without the chips, I might have given it five stars. VERY heavy/dense slab, seems to be very flat, and should work well for my purposes. But the chips are very disappointing, though they will not actually affect my use of this item.
S**L
Alles wie beschrieben
R**T
Perfectly flat and smooth
A**R
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.
B**T
Heavy but absolutely flat and ideal for my model engineering applications.
K**C
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 :)