The Wingmaster Plus Service Kit 2 contains the added Anchor Extractor for removing anchors with escutcheons. The Wingmaster 2 Kit, of course, includes the items from the original kit like the tools you need to remove old safety cover anchors and the infamous Wingmaster Plus Tool for removing winter plugs and raising and lowering safety cover anchors.
The Wingmaster Plus Service Kit 2 would be a very complete service set for any Pool Technician.