2-Rope Rip-Rap Grappless Application: Hawco 2-rope Rip-Rap grapples are designed for handling of stone 6" in diameter and larger. Hawco's design is extremely rugged and built to withstand the punishment and wear in the rock handling application. Grapple's arms are also designed with slotted bushings which allow the arms and tines to have greater mobility which is necessary for the tines to penetrate and work themselves into a pile of rock. Sizes: 3/8 to 10 cubic yards Standard Features: All alloy steel construction. Pins and bushings made of heat treated 4140 and 4150 alloy stock. All pins and bushings are lubricated through recessed grease fittings. Sheaves are cast of alloy steel and fitted with 9C aluminum bronze bushings. Oversized guide rollers for less cable wear. Boxed and ribbed arm construction Replaceable manganese tooth points