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2. Rack unit - Wikipedia

   en.wikipedia.org/wiki/Rack_unit

   Rack with sample component sizes including an A/V half-rack unit. A rack unit (abbreviated U or RU) is a unit of measure defined as 1 + 3 ⁄ 4 inches (44.45 mm). [1] [2] It is most frequently used as a measurement of the overall height of 19-inch and 23-inch rack frames, as well as the height of equipment that mounts in these frames, whereby the height of the frame or equipment is expressed ...

3. 19-inch rack - Wikipedia

   en.wikipedia.org/wiki/19-inch_rack

   The size denotes the width of the faceplate for the installed equipment. The rack unit is a measure of vertical spacing and is common to both the 19 and 23-inch racks. Hole spacing is either on 1-inch (25 mm) centers (Western Electric standard), or the same as for 19-inch (482.6 mm) racks (0.625 in or 15.9 mm spacing).

4. Workbench - Wikipedia

   en.wikipedia.org/wiki/Workbench

   The workbench surface is a vital part of the workbench. Workbench surface can be mainly divided as 4 types. They are: Particleboard: Tiny wood particles that are glued and pressure-bonded together. Most of the tops are also coated with melamine or laminate making them easy to wipe clean. Wood: Typically built of thick and solid maple. Plastic ...

5. Jack (device) - Wikipedia

   en.wikipedia.org/wiki/Jack_(device)

   It consists of a steel beam with a series of equally spaced holes along its length, and a hand-operated mechanism which can be moved from one end of the beam to the other through the use of a pair of climbing pins. Typical sizes for the farm jack are 4 feet (1.2 m), 5 feet (1.5 m)and 6 feet (1.8 m) referring to the length of the beam.

6. Workbench (woodworking) - Wikipedia

   en.wikipedia.org/wiki/Workbench_(woodworking)

   Overhead view of one arrangement of woodworking vise positions. A woodworking vise holds work in its jaws, or compressed against a bench dog or holdfast.Holes to receive these stops or clamps are typically drilled in line with a vise in 3-4" intervals, with others added to the benchtop to serve various purposes.

7. NYC comptroller asks feds to decide whether Cuomo violated ...

   www.aol.com/nyc-comptroller-asks-feds-decide...

   A declared mayoral candidate, city Comptroller Brad Lander, is asking US health officials to determine whether ex-Gov. Andrew Cuomo's controversial March 25, 2020 order requiring nursing homes to ...