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Two speeds: 375 and 750 rpm
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15 amp motor
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Shear pin protection protects gears and motor
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Built-in water swivel
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 Voltage
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120 AC
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Amps
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15.0
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No Load Speed
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375/750 RPM
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Motor Protection
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Shear Pin
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Spindle
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1-1/4 in.-7
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Max. HP
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2.5
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Plug Type
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L5-20P
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Sugg. Dia. In Med. Aggregate
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5 in.-8 in. / 2-1/2 in.-5 in.
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Tool Weight
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26.0 lbs.
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Shipping Weight
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30.0 lbs.
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Built-In Water Swivel
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Water Hose Adapter
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Water Control Valve
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Open End Wrench
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Six Extra Shear Pins
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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 375 rpm or 750 rpm operating speed. The 4090 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 2-1/2 in. to 8 in. in diameter.
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Owner's Manual
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