Diamond Core Drill Specification:(3 speeds) Drill Capacity:80MM Rated ... No-load speed:0-880/1,990/3,960r/min Diamond Core DrillSpecification:Drill Capacity:80MM Rated voltage:110V/230V ... power tools such as angle grinder,electric drill,impact dirll,polisher,jig saw,electric planer,circular saw,trimmer,orbital sander, ... our products are various.6, OEM service is available. Diamond Core Drill--G12-80