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BT30 Spindle Upgrade (M+ to MX)


Upgrading your 770M+ or 1100M+ mill to a BT30 spindle is a great upgrade to add more tool holding strength. Additionally, for the 1100M+, this upgrade increases your top spindle speed up to 10,000 rpm.

Note: The M+ update is a requirement before completing the BT30 upgrade. However, these updates can be completed at the same time. For more information, see 1100M+ Servo Upgrade .


  • 3 in. (7.6 cm) wooden block, 2

  • 6 in. gear puller

  • Flat-blade screwdriver

  • Metric hex wrench set

  • Open-ended wrenches:

    • 13 mm

    • 19 mm

    • 25 mm

  • Phillips screwdriver

  • Safety eye wear

  • Simple Green (or similar mild degreaser)

  • Torque wrench

  • WD-40 (or similar water displacement oil)
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