We have Milwaukee 4090 Diamond Coring Motor 375/750 RPM, 15 Amp with Shear Pin with Product Detail Two speeds: 375 and 750 rpm, 15 amp motor, Shear pin protection protects gears and motor, Built-in water swivel Built-In Water Swivel, Water Hose Adapter Shear pin protection protects gears and motor Built-in water swivel Limited warranty, 30-day no-risk trial . The "Milwaukee 4090 Diamond Coring Motor 375/750 RPM, 15 Amp with Shear Pin" is best product for you. We recommended Milwaukee 4090 Diamond Coring Motor 375/750 RPM, 15 Amp with Shear Pin