Cup wheels are a fast way to remove excess stock.
Installation crews use cup wheels to grind down the "back" or side of the slab that presses against the wall. Cup wheels are a versatile shop tool for hand shaping, grinding bowl holes and corner radiuses. You can also use them for grinding down saw marks in preparation for straight edge polishing; different grits available, use to finely hone the material by applying finer grit diamonds in higher stages.
Used on both wet and dry grinders.
4" to 5" Diamond cup wheels are used with angle grinders to grind, shape and hone granite, marble, solid surface and concrete countertops. Usually 4" to 5" in diameter, these tools are used dry or wet. They will create a lot of dust, so it is best to use with water to minimize the dust. If it is necessary to run a cup wheel dry, it is highly recommended that you use a dust mask and wear protective eyewear.
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