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  2. Collet - Wikipedia

    en.wikipedia.org/wiki/Collet

    ER Collet . The "ER" collet system, developed and patented by Swiss manufacturer Rego-Fix in 1972, and standardized as DIN 6499, is the most widely used tool clamping system in the world and today available from many producers worldwide. [7] [8] The standard series are: ER-8, ER-11, ER-16, ER-20, ER-25, ER-32, ER-40, and ER-50. The "ER" name ...

  3. Wrench - Wikipedia

    en.wikipedia.org/wiki/Wrench

    The term wrench is generally used for tools that turn non-fastening devices (e.g. tap wrench and pipe wrench), or may be used for a monkey wrench—an adjustable pipe wrench. [1] In North American English, wrench is the standard term. The most common shapes are called open-end wrench and box-end wrench.

  4. Chuck (engineering) - Wikipedia

    en.wikipedia.org/wiki/Chuck_(engineering)

    An exception is the ER collet which typically has a working range of 1 mm (about 0.04 in). Collets usually are made to hold cylindrical work, but are available to hold square, hexagonal or octagonal workpieces. While most collets are hardened, "emergency" collets are available that can be machined to special sizes or shapes by the user.

  5. Coes Wrench Company - Wikipedia

    en.wikipedia.org/wiki/Coes_Wrench_Company

    Coes Wrench Company was a tool manufacturing company based in Worcester, Massachusetts. The company was originally part of the L. and A. G. Coes & Co. [1] The Coes Wrench Company was founded April 1, 1888. [2] Coes Wrench Company manufactured the screw type wrench invented by Loring Coes; this wrench is commonly known as a monkey wrench.

  6. Screwdriver - Wikipedia

    en.wikipedia.org/wiki/Screwdriver

    A typical simple screwdriver has a handle and a shaft, ending in a tip the user puts into the screw head before turning the handle. This form of the screwdriver has been replaced in many workplaces and homes with a more modern and versatile tool, a power drill, as they are quicker, easier, and can also drill holes.

  7. Machine tool - Wikipedia

    en.wikipedia.org/wiki/Machine_tool

    A metal lathe is an example of a machine tool.. A machine tool is a machine for handling or machining metal or other rigid materials, usually by cutting, boring, grinding, shearing, or other forms of deformations.

  8. Drill bit sizes - Wikipedia

    en.wikipedia.org/wiki/Drill_bit_sizes

    Metric dimensioning is routinely used for drill bits of all types, although the details of BS 328 apply only to twist drill bits. For example, a set of Forstner bits may contain 10, 15, 20, 25 and 30 mm diameter cutters.

  9. Ball-peen hammer - Wikipedia

    en.wikipedia.org/wiki/Ball-peen_hammer

    A ball-peen or ball pein hammer, also known as a machinist's hammer, [1] is a type of peening hammer used in metalworking.It has two heads, one flat and the other, called the peen, rounded.

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