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2. Sandpaper - Wikipedia

   en.wikipedia.org/wiki/Sandpaper

   Examples of sanding discs using a quick-change mounting system. A quick-change system is commonly used with disc-type coated abrasives. A plastic or metal hub is bonded to one of the faces, which is threaded. This then mates directly to the sander or angle grinder or to a mandrel that can be mounted in a sander, grinder, or drill. The advantage ...

3. Angle grinder - Wikipedia

   en.wikipedia.org/wiki/Angle_grinder

   Disc size is usually measured in inches or millimeters. Common disc sizes for angle grinders in the United States include 4, 4.5, 5, 6, 7, 9 and 12 inches, with the most popular sizes being the 4.5 and 5" size. In Europe, the most common sizes for angle grinder discs are 115 and 125 millimeters. Discs for pneumatic grinders are much smaller.

4. Grinding wheel - Wikipedia

   en.wikipedia.org/wiki/Grinding_wheel

   To use the grinding wheel it must first be clamped to the grinding machine. The wheel type (e.g. cup or plain wheel below) fit freely on their supporting arbors, the necessary clamping force to transfer the rotary motion being applied to the wheels side by identically sized flanges (metal discs). The paper blotter shown in the images is ...

5. Grinding (abrasive cutting) - Wikipedia

   en.wikipedia.org/wiki/Grinding_(abrasive_cutting)

   Typical sizes on workpieces range from 0.75 in to 20 in (18 mm to 1 m) and 0.80 in to 75 in (2 cm to 4 m) in length, although pieces from 0.25 in to 60 in (6 mm to 1.5 m) in diameter and 0.30 in to 100 in (8 mm to 2.5 m) in length can be ground.

6. surform - Wikipedia

   en.wikipedia.org/wiki/Surform

   A surform tool consists of a steel strip with holes punched out and the rim of each hole sharpened to form a cutting edge. The strip is mounted in a carriage or handle. Surform tools were called "cheese graters" [2] [3] decades before they entered the market as kitchen utensils used to grate cheese.

7. Bench grinder - Wikipedia

   en.wikipedia.org/wiki/Bench_grinder

   Grinding is prohibited on the side of a typical (disk-shaped) bench grinder wheel, which is designed for grinding on the periphery only. Grinding on the side of a wheel can cause the wheel to explode. Some tool and cutter grinders have cup-shaped wheels designed to do grinding on the side.