G80 Swivel Hook with Safety Catch Ball Bearing Type SSAustlift Grade 80 swivel sling hooks are designed with a ball bearing swivel to allow the hook to swivel thus reducing the twist of a sling. Comes with heavy duty safety latch. . Marked with chain size, designation, grade, manufacture quality mark and Austlift branded. . Batch tested, test certificates available upon request. Spare trigger kits are available. Fatigue tested > 20,000 times. Application . Building construction sites . Ship building