Ergonomic two-tone soft grip handle - For extended comfort and control. Externally Accessible Brushes - For brush replacement in as little as 2 minutes. Newly Designed Powertrain and Gears - For increased life and durability. New Two Speed Gearbox: High torque mode produces over 550 in.-lbs. (Dynamic Torque). New 1/2" Metal Chuck increased durability and 25% more grip force than previous generation.
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