Specification of the core drill rig: Motor: 110V/220V/240V, 50-60Hz Power input: 1500 W No-load Speed: 2100/950 RPM Max drilling Dia.: 80mm Features of the core drill rig: 1. Two-gear rotary speed is designed, through knob to adjust the speed of gear. 2. Top-gear is suitable for 20-52 small diameter drill bit, bottom-gear is suitable for 52-70 diameter drill bit. 3. Fitted with safety clutch, which can avoid damaging the frame when the twisting force is too high. 4. Designed to become bracket type with bracket, witch Model No. Is CD-90SD. 5. CE certified
