In this video, Tiger Woods is chipping near to the green from short grass like you'd find on the fairway. His chip has a slight angle to get it over the grass, drop, then roll to the cup. If I were doing this chip, I would use my pitching wedge.
The green in this picture is a good one to use the technique Tiger Woods is showing in the video, but only after you get past the sand trap. If you were to go over the trap and drop near the flag, I would use an angle on the club face that is 45 degrees or more to the surface and use a pitching wedge or sand wedge (best) depending on the distance.
Sand Wedge: A sand wedge has a more angled face than a pitching wedge. I use a sand wedge if I want the ball to drop onto the green and stop. I prefer to use sand wedges only on flat surfaces as the chance of hitting turf and sticking increases with the surface angle.
7-Iron: A seven iron has less of a surface than a pitching wedge, but it will run further after it hits. A 7-iron is good when the grass near the green is short, especially in dry months and the area is fairly flat. You can do the chip Tiger Woods is doing in the video from a further distance--up to 80 yards in the conditions I mentioned. The distance is controlled by your back swing. Your accuracy is controlled by your follow through and where your shoulder is pointing.
10-Iron: I don't have this club in my bag, but my husband does since men's clubs are sized and angled differently than women's clubs. He uses it like I use my sand wedge.
One thing that improved my chipping was Amateur Golfer Benefits of Phil Mickelson’s Secrets of The Short Game
Final Stats on the BMW Championship: 1: Rory McIlroy 2: Phil Mickelson 2: Lee Westwood 4: Tiger Woods
The next round of the FEDEX Cup is in two weeks with the number of players down to thirty--this will be exciting!