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2. Drill bit - Wikipedia

   en.wikipedia.org/wiki/Drill_bit

   Masonry bits of the style shown are commonly available in diameters from 3 mm to 40 mm. ... hammer to drill into stone ... bit sizes. Diamond drill bits can also be ...

3. Exploration diamond drilling - Wikipedia

   en.wikipedia.org/wiki/Exploration_diamond_drilling

   The key technology of the diamond drill is the actual diamond bit itself. [4] It is composed of industrial diamonds set into a soft metallic matrix. As shown in the figure, the diamonds are scattered throughout the matrix, and the action relies on the matrix to slowly wear during the drilling process, so as to expose more diamonds.

4. Drill bit sizes - Wikipedia

   en.wikipedia.org/wiki/Drill_bit_sizes

   One aspect of this method of sizing is that the size increment between drill bits becomes larger as bit sizes get smaller: 100% for the step from 1/64 to 1/32, but a much smaller percentage between 1 47/64 and 1 3/4. Drill bit sizes are written as irreducible fractions. So, instead of 78/64 inch, or 1 14/64 inch, the size is noted as 1 7/32 inch.

5. List of drill and tap sizes - Wikipedia

   en.wikipedia.org/wiki/List_of_drill_and_tap_sizes

   The drill sizes that are near this are 9.3 mm (0.366 in) and letter U (0.368 in). In addition, 9.5 mm (0.374 in), and 3 ⁄ 8 in (0.375 in) will work well, although major minus pitch by itself does not tell you this; but the 85% ± 2 pp guideline supports it.

6. Diamond tool - Wikipedia

   en.wikipedia.org/wiki/Diamond_tool

   Shaped diamond tools are used to process stone to a particular shape. Resin-bonded diamond polishing pads are used to polish stone. Construction: Medium or small sized diamond saw blades, diamond core drill bits and some diamond grinding or polishing tools are often used in repairing roads, remodeling buildings, and processing building materials.

7. Grinding wheel - Wikipedia

   en.wikipedia.org/wiki/Grinding_wheel

   Diamond mounted points: A grinding tool for non-metallic materials such as stone, porcelain and the like, and more particularly to a grinding tool using a diamond alloy as a grinding body comprising a substrate and a plurality of grinding bodies, And the substrate is preferably made of an adhesive material having a certain toughness, and the ...