PRO-SERIES 1-1/2 X CAT 40 V-FLANGE SHELL END MILL ARBOR (3901-4261) (SKU: 3901-4261)
Pro-Series 1-1/2″ X CAT 40 V-Flange Shell End Mill Arbor
- For CNC machines with CAT 40 taper spindles
- Made of 20CrMnTi alloy steel
- Electrolysis nickel coating
- Balanced to 8,000 RPM
- Tolerance is .0002″ maximum
- Material is 42 CrMo
- Hardness is HRC 50
- 52
- Thread tolerance class is 4H
- Retention knob thread is 5/8-11
Specifications
- Pro-Series 1-1/2″ X CAT 40 V-Flange Shell End Mill Arbor
- For CNC machines with CAT 40 taper spindles.
- Made of 20CrMnTi alloy steel.
- Electrolysis nickel coating.
- Balanced to 8,000 RPM.
- Tolerance is .0002″ maximum.
- Hardness is HRC 50~52.
- Thread tolerance class is 4H.
- Retention knob thread is 5/8-11.
- Material is 42 CrMo.
- Weight: 5.5
- Dimensions: L 4, W 8, H 4
Benefits
- Industrial-grade tooling designed for dependable shop performance.
- Supports consistent results when applied with correct setup practices.
- A practical choice for U.S. machine shops and maintenance work.
Recommended use
- Confirm compatibility (size, interface, machine capacity) before ordering.
- Follow safe operating practices and use appropriate PPE.
- Optimize setup rigidity and process parameters for best results.
USA Warehouse Stock — Fast U.S. fulfillment.











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