Desoldering process control made easy with the Hakko control card. The Hakko 472D comes with a control card. Use the card to enter temperature settings into the system memory. When the card is removed, all parameter settings and the temperature setting are "locked" in the system memory. This not only provides strict process control but also guards against operators making inadvertent changes. 472D-02 provides a gun-type desoldering tool with great suction power.