The Dremel 8240 offers high performance and versatility, packaged in a sleek new tool design. As the new flagship 12-volt cordless rotary tool, the 8240 features an optimized battery platform allowing DIYers to comfortably tackle a wide range of home improvement projects without the distraction of a cord. The powerful 12-Volt / 2 AH Lithium-Ion battery provides maximum performance for extended working sessions. The new 8240 provides cord-like power in cordless form giving you the confidence to tackle the toughest of jobs.