Milwaukee 4090 Diamond Coring Motor, 375/750 RPM, 15 Amp W/Shear Pin The Milwaukee 4090 Diamond Coring Motor, 375/750 RPM, 15 Amp W/Shear Pin is 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 Milwaukee 4090 Diamond Coring Motor, 375/750 RPM, 15 Amp W/Shear Pin 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” to 8” in diameter.

Milwaukee 4090 Diamond Coring Motor, 375/750 RPM, 15 Amp W/Shear Pin Includes

• (1) Diamond Coring Motor, 375/750 RPM, 15 Amp with Shear Pin(4090)
• (1) Water Hose Adapter
• (1) Water Control Valve
• (1) Open End Wrench
• (6) Extra Shear Pins
• (1) Built-In Water Swivel