Hi ramotar2005,
When you are hitting your
irons you need to make a desending blow on the ball. Simply, hit the ball before you reach the lowest point in your throughswing. You need to make contact with the ball first, then the ground. Your
irons are designed to hit this way and it will not hurt your
clubs at all if you hit the ground. Just make sure you are hitting the ball first! If you find you are reaching excessively or that you are hitting the ground first, try moving the ball a bit further back in your stance.
Keep us updated on your progress!!!