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HSK63A- ER COLLET CHUCK BALANCING GRADE G2.5/25,000RPM
- Dynamically balanced to G2.5/25,000 RPM to meet today's demanding needs 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
- TIR: 0.00012".

| Item | Taper | Collet Series | Collet Nut Style | Nut Diameter | Projection Length | Collet Nut Style | Range |
| 4001-8466 | HSK63A | ER16 | Hex | 1.10" | 3.15" | Hex | 1/32"-3/8" |
| 4001-8467 | HSK63A | ER16 | Hex | 1.10" | 3.94" | Hex | 1/32"-3/8" |
| 4001-8468 | HSK63A | ER16 | Hex | 1.10" | 6.30" | Hex | 1/32"-3/8" |
| 4001-8469 | HSK63A | ER20 | Hex | 1.34" | 6.30" | Hex | 1/16"-1/2" |
| 4001-8479 | HSK63A | ER32 | Slotted | 1.97" | 3.94" | Slotted | 3/32"-25/32" |
| 4001-8470 | HSK63A | ER40 | Slotted | 2.48" | 3.15" | Slotted | 1/8"-1" |
| 4001-8471 | HSK63A | ER40 | Slotted | 2.48" | 4.72" | Slotted | 1/8"-1" |





































