12V XR Brushless Sealed Head Ratchet. Fasten or remove small nuts, bolts, and other fasteners in tight areas with the 12V XR 3/8" & 1/4" Sealed Head Ratchet. Maximise versatility with the ability to quickly swap between 1/4" square drive, 3/8" square drive, and 1/4" quick change hex interchangeable anvils as well as change from forward/reverse for efficient working in tight areas.