STC Core Drill Motor SCY-90-2BS 2-Speed 1800WSyntec handheld core drill motor, 2 speed, 1800 W. Handheld or rig operated core drill motor for use both wet and dry. Oil bath lubrication and overload clutch. Integrated horizontal and vertical levels. Full metal housing. In line overload protection. Includes toolset and carry case. Fits both standard and high speed bits. Power: 240 V, 10 A Motor: 1800 W Speed: 800 3600 RPM Thread: 1 1 4" 7 UNC external, 1 2" BSP internal Max bit diameter: 90 mm