Milwaukee 4090 750 RPM Diamond Coring Motor with Shear Pin

- Item #: BCI74368

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750 RPM Diamond Coring Motor with Shear Pin

Diamond coring motors are used with Vac-U-Rig and Dymorig diamond core rigs to drill holes into reinforced concrete. This 20 amp model features 4.8 peak horsepower with a 375 rpm or 750 rpm operating speed. The 4090 has a shear pin to protect gears and motor against overload. This unit will handle core bits from 4" to 14" in diameter. Includes motor, built-in water swivel, adapter to receive standard water hose, water control valve and wrench.


  • Two Speeds
  • 15 AMP Motor
  • Shear Pin Protection
  • Built-In Water Swivel
  • 375 RPM to 750 RPM
  • 120 AC Volts
  • 2.5 Horse Power
  • 5 Year Warranty

Since its founding in 1924, Milwaukee has focused on a single vision: To produce the best heavy-duty electric power tools and accessories available to the professional user. Today, the Milwaukee name stands for the highest quality, durable and reliable professional tools money can buy.

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Our SKU: Milwaukee 4090

This product is listed under the following manufacturer number(s):

  • Milwaukee 4090

*Denotes a finish or option that has been discontinued

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