These post chuck adapters are for U-Channel sign posts.
The driver is easily operated by one person, delivering up to 1700 blows per minute.
The driver features a low air consumption rate, light-weight and hand portable, and is ideal for driving in hard to reach places.
This driver comes with a 3 7/8" ID master chuck. Order the corresponding Post Chuck Adapter to conform to your specific sign post needs.
1.0"- 3" attachments for use with PD-55 Model Post Driver