Rhino GPD-40 Contractor's Kit includes GPD-40 Fence Pro Post Driver, Pack of 2 - 2" Adapters, Pack of 2 - 1-3/4" Adapters, Pack of 4 - Rhino Grease, and 50 Hour Service Kit. Avoid downtime and have what you need to keep your tools running. Adapters to fit a variety of posts. Grease and service kit to protect your post driver and keep business running. Great for contractors and rental companies or anyone who makes a living from their tools.