Quick view BLUEROCK TOOLS BLUEROCK Model 20Z1 T/S 220v Large Capacity Concrete Core Drill w/ Tilting Stand & Rolling Base BLUEROCK 20Z1 T/S 3-SPEED CORE DRILL OUR BIGGEST, MOST POWERFUL 20" CAPACITY CONCRETE CORE MSRP: Was: Now: $2,195.00 Add to Cart