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2. Grinding wheel - Wikipedia

   en.wikipedia.org/wiki/Grinding_wheel

   Aluminum oxide (A) Silicon carbide (S) Ceramic (C) Diamond (D, MD, SD) Cubic boron nitride (CBN) Grinding wheels with diamond or CBN grains are called superabrasives. Grinding wheels with aluminum oxide (corundum), silicon carbide, or ceramic grains are called conventional abrasives.

3. Disc cutter - Wikipedia

   en.wikipedia.org/wiki/Disc_cutter

   These cutting wheels or discs are extremely thin and often less than 2 inches in diameter. Because they are so thin, they are commonly made of metal and have a diamond-coated edge as the abrasive. This type of disc cutter is good for sheet metal and for lightweight or thin materials. Thicker or heavier materials will need a larger disc cutter.

4. Sandpaper - Wikipedia

   en.wikipedia.org/wiki/Sandpaper

   Sheets of sandpaper with different grit sizes (40 (coarse), 80, 150, 240, 600 (fine)) Sandpaper, also known as coated abrasive, is a type of material that consists of sheets of paper or cloth with an abrasive substance glued to one face. [1]

5. Cutting stock problem - Wikipedia

   en.wikipedia.org/wiki/Cutting_stock_problem

   A simple lower bound is obtained by dividing the total amount of product by the size of each master roll. The total product required is 1380 x 22 + 1520 x 25 + ... + 2200 x 20 = 407160 mm. Each master roll is 5600 mm, requiring a minimum of 72.7 rolls, which means 73 rolls or more are required.

6. Diamond blade - Wikipedia

   en.wikipedia.org/wiki/Diamond_blade

   Larger diamond grits will provide a higher cutting speed, but will be more likely to cause chipping, burring, or cracking. Fire departments sometimes use vacuum brazed saw blades and require blades to be made with a very large diamond grit, to tear through material quickly. An intermediate grit size is used by the production industry. [1]