The Approach Wedge AW is viewed as your gap wedge - to fill in the gap between pitching wedge and sand wedge. I'll set that right there and explain the traditional wedges. The Sand Wedge SW is traditionally set at 56, maybe 58 degrees. read more
The AW is the gap wedge, which is the wedge in between your pitching wedge and sand wedge. Just like the 7 iron is between the 6 and 8 iron. AW, means either attack or approach wedge or gap wedge and has (no standard in golf) 49 to 53 degrees of loft. read more
All of them are different lofts. PW is between 46-49 degrees. AW is between 50-53 degrees. SW is between 54-58 degrees. LW is between 60-64 degrees. Of course different manufacturers have different lofts on their equipment, but those are the lofts of each I've seen. read more
By John Lindell Lob wedges have a loft of between 59 and 65 degrees and are designed to lift a golf ball quickly, then land it with lots of spin. read more