Milwaukee 4079 600 RPM Diamond Coring Motor with Shear Pin

- Item #: BCI259357
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600 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 300 rpm or 600 rpm operating speed. The 4079 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
  • 20 AMP Motor
  • Shear Pin Protection
  • Built-In Water Swivel
  • 300 RPM 7 to 14 Coring Bits Capacity
  • 600 RPM 4 to 7 Coring Bits Capacity
  • 120 AC Volts
  • 4.8 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 4079

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

*Denotes a finish or option that has been discontinued

Milwaukee 4079 Product Specifications

Amperage 20
Application Motors
Cordless No
Horsepower 4.8
Manufacturer Warranty 5 Year
No Load RPM 300, 600
Speeds 2
Voltage 120

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