Brushless power to perform, runtime to last. From cutting to sanding and grinding to drilling the Dremel 8250 delivers corded performance without the inconvenience of a cord. Featuring an advanced brushless motor, the 8250 provides optimized motor efficiency, more runtime and power and long tool life. With 20% higher power vs Dremel's most powerful corded tool the 4300, the 8250 provides maximum versatility to perform the widest range of applications and is compatible with all rotary tool accessories and attachments. The powerful 12 V/3 A lithium-ion battery provides great performance and runtime at all speeds, delivering 100% more runtime vs the 8220 ensuring that the 8250 will still be going strong when you need it. The innovative tool design is engineered to exceed endurance tests for consistent and powerful performance every time, while the ergonomic body provides a comfortable grip zone making it ideal for extended use. The 8250 gives you the confidence and performance to tackle the toughest of jobs.