Hydraulic system of a tool

A tool comprising:

• a hydraulic actuator cylinder;
• a piston slidably accommodated within the hydraulic actuator cylinder, wherein the piston includes a piston head and a piston rod extending from the piston head along a central axis direction of the hydraulic actuator cylinder, wherein the piston head divides an inside of the hydraulic actuator cylinder into a first chamber and a second chamber, wherein the piston is partially hollow, and wherein the piston rod is disposed in the first chamber and configured to move one or more jaws of the tool;
• a pump configured to provide pressurized fluid;
• a sequence valve configured to block the pressurized fluid from flowing into the second chamber of the hydraulic actuator cylinder until pressure of the pressurized fluid exceeds a threshold pressure value, wherein when the tool is triggered:
• the pump provides the pressurized fluid to a hollow portion of the piston, causing the piston to extend at a first speed until at least one of the one or more jaws reach an object placed therebetween, and
• thereafter, pressure of the pressurized fluid increases until the pressure reaches the threshold pressure value, causing the sequence valve to open providing a path for the pressurized fluid to the second chamber, causing the piston to extend at a second speed;
• and
• a high pressure check valve configured to prevent the pressurized fluid from flowing into the second chamber as the piston extends at the first speed.