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  2. Drill - Wikipedia

    en.wikipedia.org/wiki/Drill

    Some drill presses add a third stepped pulley to increase the number of available speeds. Modern drill presses can, however, use a variable-speed motor in conjunction with the stepped-pulley system. Medium-duty drill presses such as those used in machine shop (tool room) applications are equipped with a continuously variable transmission. This ...

  3. Chevrolet 153 4-cylinder engine - Wikipedia

    en.wikipedia.org/wiki/Chevrolet_153_4-cylinder...

    The 153 cu in engine had a 3 + 7 ⁄ 8-inch (98 mm) bore and 3 + 1 ⁄ 4-inch (82.6 mm) stroke, with two overhead valves per cylinder actuated by pushrods and a 1-3-4-2 firing order. The Chevy II 's 194 cu in six-cylinder used a 3 + 9 ⁄ 16 -inch (90.5 mm) bore, which by 1964 was enlarged to match the 153 four-cylinder's resulting in a ...

  4. Z-drag - Wikipedia

    en.wikipedia.org/wiki/Z-drag

    A Z-Drag or Z-Rig is an arrangement of lines and pulleys, effectively forming a block and tackle, that is commonly used in rescue situations. [1] The basic arrangement results in pulling the hauling end 3 times the distance the load is moved, providing a theoretical mechanical advantage of three to one .

  5. Boring (manufacturing) - Wikipedia

    en.wikipedia.org/wiki/Boring_(manufacturing)

    A part's-eye view of a boring bar. Hole types: Blind hole (left), through hole (middle), interrupted hole (right). In machining, boring is the process of enlarging a hole that has already been drilled (or cast) by means of a single-point cutting tool (or of a boring head containing several such tools), such as in boring a gun barrel or an engine cylinder.

  6. Offenhauser - Wikipedia

    en.wikipedia.org/wiki/Offenhauser

    A 251.92 cubic inch (4,128.29 cm³) DOHC naturally-aspirated four-cylinder racing Offy with a 15:1 compression ratio and a 4.28125-by-4.375-inch (108.744 mm × 111.125 mm) bore and stroke could produce 420 hp (310 kW) at 6,600 rpm (1.77 hp per cubic inch, 81 kW/L) making it remarkably power-dense. Other variants of the engine produced even ...

  7. Chrysler PowerTech engine - Wikipedia

    en.wikipedia.org/wiki/Chrysler_PowerTech_engine

    The bore and stroke measure 3.66 in × 3.57 in (93.0 mm × 90.7 mm). It is a 90° V engine like the V8, with SOHC 2-valve heads. It utilizes a counter-rotating balance shaft mounted between the cylinder banks to deal with vibration problems of the 90-degree V6 design, as well as use a 30-degree split pin crankshaft to fire the cylinders every ...

  8. Chevrolet 90° V6 engine - Wikipedia

    en.wikipedia.org/wiki/Chevrolet_90°_V6_engine

    The 4.3 L (262 cu in) V6 has a 4 in × 3.48 in (101.6 mm × 88.4 mm) bore and stroke, identical to the 350 cu in (5.7 L) Chevrolet V8 engine. To create a true even-fire engine, Chevrolet produced a crankshaft with 30-degree offsets between each rod pin. Consequently, rod journals were increased to a larger 2 + 1 ⁄ 4 inches (57.2 mm).

  9. Pneumatic tool - Wikipedia

    en.wikipedia.org/wiki/Pneumatic_tool

    A pneumatic tool, air tool, air-powered tool or pneumatic-powered tool is a type of power tool, driven by compressed air supplied by an air compressor. Pneumatic tools can also be driven by compressed carbon dioxide (CO 2 ) stored in small cylinders allowing for portability.

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