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These versatile sanding blocks are ideal for sanding large surfaces, creating straight edges, making dihedral angles, profiling leading edges, refining marginal edges, and much more...
The abrasive grains are permanently "bonded" to the aluminum backing using an exclusive process. What's more, they're virtually indestructible!
These blocks have two abrasive faces, one coarse-grained (180) and the opposite fine-grained (320).