Most golfers slice, which means that the ball starts to the left of the target and finishes well to the right. Slicing probably stems from the fact that most players tend to aim to the right of their target. When they do so, their swings have to compensate so that the resulting shots can finish close to the target.
In general, slicers use too much body action and not enough hand action in their swings. Golfers who hook have the opposite tendency — too much hand action, not enough body.
If you’re a slicer, you need to get your hands working in the swing.
Address a ball as you normally do.
Use your usual stance, shoulder positioning, and so on.
Position your body with your butt toward the target.
You want your feet perpendicular to the target line.
Twist your upper body to the left so that you can place the clubhead behind the ball.
Don’t move your feet, however. From this position, you have, in effect, made it impossible for your body to turn to your left on the through-swing.
Don't move your feet!
Swing through, focusing on letting the toe of the clubhead pass your heel through impact.
Quite a change in your ball flight, eh? Because your hands and arms are doing so much of the rotating work in your new swing, the clubhead is doing the same. The clubhead is now closing as it swings through the impact area. The spin imparted on the ball now causes a slight right-to-left flight.
After you’ve hit about 20 shots by using this drill, switch to your normal stance and try to reproduce the feel you had standing in the drill's strange way.
You’ll soon be hitting hard, raking draws (slight hooks) far up the fairway.