HSK63A- ER Collet Chuck Balancing to Grade G2.5/25,000RPM

Style: ER20, 6.30" Projection Length, Range: 1/16"-1/2" (4001-8469)

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  • Dynamically balanced to G2.5/25,000 RPM to meet today's demanding need in aggressive high-speed machining
  • In a generic standard ER collet nut, an internal ring is off-centered so that an ER collet can be easily snapped into it and holds the ER collet in place. To minimize this off-centering, the ER collet nut is optimized to distribute the flat sides' area to off-set the off-center. ER collet nut is also balanced with each holder
  • Made from alloy steel hardened to HRC 52-56
  • All critical surfaces are precision ground
  • Concentricity is less than 0.0001" from taper to end mill pocket
  • Each holder comes with a lab certificate on its taper accuracy and runout measurement
  • Coolant through capability
Item Taper Collet Series Nut Diameter Projection Length Range
4001-8466 HSK63A ER16 1.10" 3.15" 1/32"-3/8"
4001-8467 HSK63A ER16 1.10" 3.94" 1/32"-3/8"
4001-8468 HSK63A ER16 1.10" 6.30" 1/32"-3/8"
4001-8469 HSK63A ER20 1.34" 6.30" 1/16"-1/2"
4001-8479 HSK63A ER32 1.97" 3.94" 3/32"-25/32"
4001-8470 HSK63A ER40 2.48" 3.15" 1/8"-1"
4001-8471 HSK63A ER40 2.48" 4.72" 1/8"-1"


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