FK60 Diamond Drill Bit Set for Dry Concrete (9 Pieces) LEV-MAX FK120 Diamond Drill Bit Set for Dry Concrete (9 Pieces) LEV-MAX FK220 Diamond Drill Bit Set for Dry Concrete (9 Pieces) LEV-MAX FK400 Diamond Drill Bit Set for Dry Concrete (9 Pieces) LEV-MAX FK800 Diamond Drill Bit Set for Dry Concrete (9 Pieces) LEV-MAX FK1800 Diamond Drill Bit Set for Dry Concrete (9 Pieces) LEV-MAX