Milwaukee 20-Amp 450-900 RPM Diamond Coring Motor with Shear Pin-4094 - The Home Depot


Model # 4094

Internet # 203168489

20-Amp 450-900 RPM Diamond Coring Motor with Shear Pin

Milwaukee 20-Amp 450-900 RPM Diamond Coring Motor with Shear Pin

This item has been discontinued.
The Home Depot no longer carries this specific product.

$780.00 / each


Model # 4094

Internet # 203168489

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 450 rpm or 900 rpm operating speed. The 4094 uses a shear pin to protect gears and motor against overload. Shear pins are easily replaced and extra pins are included with the unit. This unit will handle core bits from 2 in. to 10 in. in diameter.

  • Two speeds: 450 and 900 rpm
  • 20 amp motor
  • Shear pin protection protects gears and motor
  • Built-in water swivel

Info & Guides

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Assembled Depth (in.)  6.75 in  Assembled Height (in.)  23.68 in 
Assembled Width (in.)  6.43 in  Product Depth (in.)  6.75 
Product Height (in.)  23.68  Product Width (in.)  7.43 
Amperage (amps)  20  Case Included  No 
Chuck Size  2 In.  Chuck Type  Industrial 
Clamshell/Jam pot  Jam pot  Color Family  Red 
Cord Length (ft.)  8.0  Corded Tool Type  Drill/Driver 
Cordless/Corded  Corded  Drill/ Driver Type  Drill/ Driver 
Forward/reverse switch  Forward switch and reverse switch  Maximum Speed (rpm)  900 
Power Tool Product Type  Corded  Product Weight (lb.)  30.9 lb 
Reconditioned  No  Returnable  90-Day 
Tools Product Type  Power Tool  Variable Speed  Yes 
Warranty / Certifications
Certifications and Listings  1-UL Listed,CSA Listed,ETL Listed  Manufacturer Warranty  5 year Limited Tool Warranty 



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