Grex A11AD is a pneumatic stapler designed for driving 20 gauge, 3/8-inch crown staples ranging in length from 5/16 inches to 5/8 inches. It is commonly used in applications such as upholstering, carpet laying, light wood assembly, display and sign work, and other similar tasks.

The A11AD is powered by compressed air and operates at a pressure range of 70 to 100 psi. It has a sturdy construction and weighs approximately 2 pounds, making it easy to handle and maneuver.

One of the key features of the A11AD is its rear exhaust with silencer, which helps to reduce noise levels during operation. Additionally, the tool features a convenient magazine latch for quick and easy loading of staples.