Atlas Copco’s new generation of Cobra gas drills and breakers are designed for stricter exhaust emission standards. Featuring improved carburetor and filter systems and a redesigned noise reduction system that includes a catalytic element, the Cobra Combi, Cobra Pro and Cobra TT gas drills and breakers offer a 50-percent reduction in the emission of hydrocarbons compared to their predecessors. All models feature an electronic ignition, choke and a redesigned fuel cap for better regulation of tank pressure.