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2. Surface grinding - Wikipedia

   en.wikipedia.org/wiki/Surface_grinding

   A surface grinder is a machine tool used to provide precision ground surfaces, either to a critical size or for the surface finish. The typical precision of a surface grinder depends on the type and usage, however ±0.002 mm (±0.0001 in) should be achievable on most surface grinders.

3. Grinding machine - Wikipedia

   en.wikipedia.org/wiki/Grinding_machine

   It can also be used to make and sharpen metal stamping die sets, flat shear blades, fixture bases or any flat and parallel surfaces. Surface grinders can be manually operated or have CNC controls. Tool and cutter grinder, which usually can perform the minor function of the drill bit grinder or other specialist toolroom grinding operations.

4. Centerless grinding - Wikipedia

   en.wikipedia.org/wiki/Centerless_grinding

   A schematic diagram of the centerless grinding process. Centerless grinding is a machining process that uses abrasive cutting to remove material from a workpiece. [1] Centerless grinding differs from centered grinding operations in that no spindle or fixture is used to locate and secure the workpiece; [2] the workpiece is secured between two rotary grinding wheels, and the speed of their ...

5. Grinding (abrasive cutting) - Wikipedia

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

   The tolerances that are normally achieved with surface grinding are ±2 × 10 −4 inches (5.1 μm) for grinding a flat material and ±3 × 10 −4 inches (7.6 μm) for a parallel surface. [4] The surface grinder is composed of an abrasive wheel, a workholding device known as a chuck, either electromagnetic or vacuum, and a reciprocating table.

6. Texas wants to buy surplus border wall parts but U.S ... - AOL

   www.aol.com/texas-wants-buy-surplus-border...

   The auctioneer would give Texas the first chance the buy the used border wall materials, should they go back up for sale, Patrick wrote. "Governor (Greg) Abbott and I stand ready to buy them if ...

7. Secret Santa gives thousands of dollars to North Carolina ...

   www.aol.com/secret-santa-gives-thousands-dollars...

   Every year, this anonymous, wealthy businessman travels the country during the holidays, giving away about $100,000 in $100 bills.