FPI's High Voltage Double-Insulated tools are tested to 10,000 volts and rated for use up to 1000 volts AC and 1500 volts DC. All wrenches feature an insulated high-visibility handle with cushion grip. Ideal for accessing tight work areas too confining for a standard socket and ratchet combination. Kit Includes: (1) 3/8 Dr. Ratchet, (1) of Each 3" & 6" Extension (1) 5/8" Deepwell Socket (1) Of Each Standard Sockets 1/4",5/16", 3/8",7/16",1/2",9/16" and 11/16" (1) Fitted Case