Abstract: A battery powered hydraulic tool including a frame; a battery connected to the frame; a motor connected to the frame and adapted to be powered by the battery; and a hydraulic pump connected to the motor by a gear reduction transmission. The motor and gear reduction transmission are adapted to output a torque of the least about 160 oz-in in with the gear reduction transmission being adapted to provide a gear reduction of between about 8:1 to about 15:1 or less, and the hydraulic pump being adapted to output at least about 6000 psi of pressure or more.

Abstract: A battery operated hydraulic compression tool comprising a frame; a hydraulic fluid reservoir connected to the frame; an electric motor driven hydraulic pump connected to the hydraulic fluid reservoir; a ram movably connected to the frame; and a multi-speed ram advancement system for advancing the ram in at least two different rates of movement on the frame. The advancement system includes a rapid advance actuator located directly against the ram, and a hydraulic bypass system located between the pump and the ram for conduiting hydraulic fluid past the rapid advance actuator to the area of the frame holding the ram.

Abstract: An electrical connector crimping die comprising a first section for removably connecting the die to an electrical connector compression tool; and a second section connected to the first section for contacting an electrical connector. The second section comprises a generally crescent shaped crimp projection forming a crimp surface and at least one secondary over-crimp prevention surface. The secondary surface is recessed relative to the crimp surface and has a general radius of curvature larger than a general radius of curvature of the crimp surface.

Abstract: A hydraulic tool having a frame, a conduit system in the frame, a pump in the conduit system, a ram movably connected to the frame, and a mechanical actuator provided in the conduit system for contacting a rear end of the ram. The conduit system is adapted to conduit hydraulic fluid from the pump against both the rear end of the ram and a rear end of the mechanical actuator.

Abstract: A hydraulically powered tool having a motor, a pump, and a hydraulic directional flow control valve. The valve has a frame and a rotatable spool with flow channels. The valve is provided as a four position, six way valve to provide four operational conditions for the tool including NEUTRAL, DRILL, RETRACT and FAST FORWARD.