Precise CAT40 V-Flange to Jacobs Taper JT4 Drill Chuck Arbor - 3900-4208

• For CNC machines with CAT 40 taper spindles.
• Made of 20CrMnTi alloy steel.
• Electrolysis nickel coating.
• Hardened and precision ground.
• Gage Depth is 1.772"
• Maximum RPM is 8,000
• Tolerance is .0002" Maximum
• Retention knob thread is 5/8"-11
• Superior finish.

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