WH18DC is the next generation of cordless impacts, providing an innovative solution to make any jobsite even more productive! By incorporating a third anvil and now 5 speed settings including the powerful BOLT mode that efficiently tightens and loosens large bolts and nuts, it can ...WH18DC is the next generation of cordless impacts, providing an innovative solution to make any jobsite even more productive! By incorporating a third anvil and now 5 speed settings including the powerful BOLT mode that efficiently tightens and loosens large bolts and nuts, it can achieve a high torque of 1,859 in-lbs, an impressive 4,000 BPM, and a faster driving speed of 3,700 RPM, while also reducing vibration.The 18V Triple Hammer BOLT Impact Driver is part of the expanding MultiVolt System of 18-Volt and 36-Volt power tools from Metabo HPT. Go compact and lightweight for all applications with 18V batteries or GO extreme with the unique 18V/36V MultiVolt battery to super charge your runtime for up to 8.0Ah* per charge.