Products 11/17/2010 Tunnel-Digging Rig: Direct-Control System The Boomer XL3 D is a tunnel-digging rig that features direct control by the operator. Intended for large tunnels in civil projects, it can be fitted with a wide range of powerful rock drills for different rock conditions. The rig features a Tier 3 engine and a redesigned operator cabin that blocks lower overall noise levels. Atlas Copco; 413-746-0020; www.atlascopco.com Drill Driver: Subcompact Size The M12 Hammer Drill Driver is 75/8 in. long, weighs only 2.8 lb and is able to deliver 22.9-ft-lb of torque. The tool is powered by a 12V lithium-ion battery
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.