Precision Surface Plate - Black Granite
Harder than steel
Does not nick or burr
Retains accuracy for years
Size: 12'' x 18'' x 3''
Accuracy: + .0001
A granite block is handy for layout work, measurement, and for the precision alignment of small assemblies. This particular block is an ideal size for the home shop as it does not require special lifting equipment, and it does not take up a lot of space on your bench. It comes with a certificate of inspection that indicates it is a "B" grade (shop grade) block. A great value at this price.
Keep the crate it is shipped in. The top makes an excellent cover to keep your block clean and free from damage when not in use.