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