The Ridgid R86111 18-volt lithium-ion hammer drill delivers 610 inch-pounds of torque and no-load speeds of 0 to 450 and 0 to 1,600 rpm, and 0 to 7,200 and 0 to 25,600 bpm. The tool's automatic spindle lock allows for quick bit changes, and its locking, single-sleeve carbide chuck holds bits securely, says the company. Other features include a hammer-mode switch, a 24-position clutch with high-impact adjustment ring, and a dual-speed gearbox. The 3.0-amp-hour battery charges in 45 minutes. Price: $269. 800-474-3443.