The CID Heavy Duty and X-treme Rock Grapples are great for sifting through dirt in order to remove rocks. The X-treme Grapple has fully welded front teeth, while the HD version uses a 3/4” x 6” cutting edge. The HD version has tine spacing set at 2 3/8”, while the X-treme has 3” spacing. Our top quality 1/2" steel and 5/8" grapple tines provide all the strength you may need for removal of rocks, logs, and brush. Has twin cylinders rated at 4000 PSI.