Keys To Solid Iron Strikes
On iron shots, hit the ball with the back of your left hand facing the target. Your hands will lead the clubhead, so the shaft is angled slightly toward the target at impact (above, left). This allows you to drive the club down and through the shot and take a divot after the ball. It also ensures that you hit from the inside for power and produce a penetrating flight.
Don't try to roll your hands over at impact (above, right). With the club going 90 miles an hour, your brain doesn't have time to tell your hands to do that with any accuracy. You can see here my hands have rolled too much, causing the clubface to shut and the shaft to tilt away from the target, which makes it hard to hit the ball solid. I'll bet this one went low and left.