The Dremel 8240 offers high performance and versatility, packaged in a sleek new tool design. The Dremel 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 8240 provides cord-like power in cordless form giving you the confidence to tackle the toughest of jobs. Tight spots, nooks, and corners they're all easily within reach when you add the 225 Flex Shaft attachment to a Dremel Rotary Tool.