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| Model | Amps | RPM | Suggested Diameter |
| 4090 | 15 | 375 750 | 5" - 8" 2-1/2" - 5" |
| 4079 | 20 | 300 600 | 7" - 14" 4" - 7" |
| 4094 | 20 | 450 900 | 6" - 10" 2" - 6" |
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| Suggested diameters listed on specific models are for maximum coring efficiency in medium aggregate. Speeds must be adjusted for material conditions. |
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Milwaukee Diamond Coring Motors - Shear Pin Model Features:
- TWO SPEED DYMODRILL MOTORS FOR USE WITH VAC-U-RIG & DYMO-RIG DIAMOND CORE RIGS
- For Diamond Coring in Reinforced Concrete, Tile, Masonry, or Natural Stone
- Dual Torque/Speed Ranges
- All Ball and Roller Bearings
- Triple Reduction Gearing on All Models
- Milwaukee Shear Pin Protection: Protects gears and motor against overload. Shear Pins easily replaced. Six extra pins (44-60-0032) included with each unit.
- All Models Include: Built-in water swivel, adapter to receive standard water hose, water control valve, and an open end wrench for holding output spindle while removing bits.
- Cord Equipped With 20.0 Amp Twist Lock Plug; NEMA Plug Type L5-20P
- Milwaukee 15 AMP Model Provides Core Drilling Power Where 20 AMP Service is Unavailable
- Milwaukee 20 AMP Models Provide 4.8 Peak Horsepower to Maintain Higher Coring Speed and Produce Higher Torque for Maximum Core Drilling Production
| | 4090 | $710.25 |
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| 15 AMP 375/750 RPM SHEAR PIN DYMODRILL |
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| 4079 |
$738.75 |
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| 20 AMP 300/600 RPM SHEAR PIN DYMODRILL |
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| 4094 |
$738.75 |
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| 20 AMP 450/900 RPM SHEAR PIN DYMODRILL |
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