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2. Collet - Wikipedia

   en.wikipedia.org/wiki/Collet

   A number of other C-series collets (1C, 3C, 4C, 5C, 16C, 20C & 25C) with different holding ranges also exist. A collet system with capabilities similar to the 5C (originally a proprietary system of Hardinge) is the 2J (originally a proprietary system of Sjogren, [12] a competitor of Hardinge, and which Hardinge later assimilated).

3. Hardinge, Inc. - Wikipedia

   en.wikipedia.org/wiki/Hardinge,_Inc.

   Hardinge, Inc. is a multi-national machine tool builder with global headquarters in Berwyn, PA, USA. It began operation in 1890. Hardinge is best known for its lathes, both non-CNC and CNC. Hardinge Inc. machine tool brands now include Hardinge, Bridgeport, Kellenberger, Usach, Hauser, Jones & Shipman, Voumard, and Tschudin. It currently has ...

4. Hardinge Inc. layoffs confirmed as company files WARN ... - AOL

   www.aol.com/hardinge-inc-layoffs-confirmed...

   Hardinge, which was founded in the 1890s in Chicago and relocated to Elmira in the 1930s, was in discussions with the U.S. Department of Energy to secure an advance payment that would allow the ...

5. Talk:Machine taper - Wikipedia

   en.wikipedia.org/wiki/Talk:Machine_taper

   A machine with an R8 collet system (usually a manual Bridgeport style vertical mill, aiui) normally has a set of collets of varying sizes. To use a 1/2" shank end mill, you install the 1/2" collet, insert the end mill in the collet, and tighten the draw bar to retain the end mill. To use a different size tool, you use a different size collet.

6. 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.

7. Bridgeport (machine tool brand) - Wikipedia

   en.wikipedia.org/wiki/Bridgeport_(machine_tool...

   Both Morse and R8 allowed for both collets and solid holders, and a drill chuck could be held by either of the latter. Currently R8 and Erickson #30 Quick Change tool holders are available. Machine slides are of the dovetail type, and rotary bearings are mostly of the roller and ball types.