Precise CAT 40 V-Flange Shell End Mill Arbor, 1 Diameter, 2 Gage Length – 3900-4257

Bore Thread 1/2″-20

Precise CAT 40 V-Flange Shell End Mill Arbor, 1″ Diameter, 2″ Gage Length – 3900-4257

• For CNC machines with CAT 40 taper spindles.
• Hardened and precision ground.
• Retention knob thread is 5/8″-11.

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