Milwaukee 4097-20 1-1/4" Diamond Coring Motor

- Item #: BCI74425

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1-1/4" Diamond Coring Motor

Diamond coring motors are used with Vac-U-Rig and Dymorig diamond core rigs to drill holes into reinforced concrete. This 15 amp model provides core drilling power where 20 amp service is unavailable. This unit has a 500 rpm or 1000 rpm operating speed. The 4097-20 uses a clutch to protect gears and motor against overload. This unit will handle core bits from1 1/4" to 5" in diameter.


  • Two Speeds
  • 500 to 1000 Maximum RPM
  • 15 AMPs
  • 2.5 Horse Power
  • 1-1/4" Spindle
  • L5-20P Plug Type
  • 5" Capacity in Concrete
  • Includes Built-In Water Swivel, Water Hose Adapter, Water Control Valve, Open End Wrench
  • 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.

Additional Milwaukee Links

Our SKU: Milwaukee 4097-20

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

  • Milwaukee 4097-20

*Denotes a finish or option that has been discontinued

Milwaukee 4097-20 Product Specifications

Amperage 15
Application Motor
Cordless No
Horsepower 2.5
Manufacturer Warranty 5 Year
No Load RPM 1000, 500
Speeds 2
Spindle Thread 1-1/4"

Installation Resource Center

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