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Sure-Grip ®Expanding Collet SystemsSure-grip expanding colletsystems offer internal grippingsolutions for thin wallparts, or workpieces withexterior threading…Expanding collets will handlea variation in size of +.015"to -.001" (+.38 to .025mm)from its specified size –ideal for bar work!Collets are available from1/8" up to 4" diameter (3.18to 101.60 mm) as standard.Hex, square and specialshapedcollets are available.Sure-Grip ® Expanding Collet SystemsThe <strong>Hardinge</strong> Sure-Grip expanding collet provides highprecision internal gripping solutions. Features include trueparallel gripping, instant centering of the part and a widegripping range of each collet head. <strong>Hardinge</strong> precisionmanufacturing process guarantees that the total indicatorreading (TIR) of the arbor will be within .0002" (.00508mm).With the expanding collet mounted on the arbor, the TIR ofthe collet and the arbor will not exceed .0005" (.0127mm).The one-piece spindle arbor construction and the closingmechanism hold the workpiece extremely rigid for bettersurface finishes and concentricity. Mount directly to thespindle without the use of an adapter.HQC ®Quick-Change Collet SystemsHQC Quick-Change ColletSystems offer the shortestoverhang from the spindlewith true parallel grippingand flexible grip range forvariations in bar stock!HQC ® Quick-Change Collet SystemsThe HQC Quick-Change Collet System mount isshorter than collet adaptation chucks and power chucks.Interchangeable quick-change collet heads have a workingrange of ± 1 /64" (.396mm) for under a 2" (50.8mm) diameter,and ± 1 /32" (.793mm) for a 2" (50.8mm) diameter and over,making them ideal for bar work. True parallel gripping affordshigh feed rates and spindle speeds.Replace your 3-Jaw power chuck with the HQC Quick-Change Collet System. The reduction in weight and theunique, efficient design of the HQC system allow you toincrease the spindle rpm without any concern for centrifugalforces. Chucking forces are higher than jaw chucks andstandard solid collets.<strong>Hardinge</strong> <strong>Inc</strong>. One <strong>Hardinge</strong> Drive | P.O. Box 1507 | Elmira, New York 14902-1507 USAUSA: 800-843-8801 | Canada: 800-468-5946 | Fax: 607-734-3886To Order Online: www.hardingetooling.com | Corporate Homepage: www.hardinge.com | E-mail: info@hardingetooling.comAll specifications subject to change without notice. All marks indicated by ® and are trademarks of <strong>Hardinge</strong> <strong>Inc</strong>. Brochure 2366B • Litho in USA • ©<strong>Hardinge</strong> <strong>Inc</strong>. 2006
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