Switch to a dual-drill core drill for medium to large projects involving highway lane additions, concrete work for airports and other concrete repairs that require greater productivity. These versatile concrete core drills can be configured for work on the slab or at foundation level. Get greater efficiency when drilling a slab with the 210B-2 SRA. It features a dual percussion system that operates simultaneously and is adjustable to drill every 12 to 36 inches on center. It can also be customized to meet wider spacing requirements. The 210B-2 SRA with sweeper requires 300 cfm and fits a 4 foot patch. It can also be configured for level drilling. Thanks to its patented three-way system, the drill repositions quickly and moves easily. GROUPEGYMDEX.COM