JET JLH Series lever hoist has drop forged, carbon steel hooks that are quenched and tempered to increase strength and will slowly stretch to indicate an over load situation. Cast steel safety latches, attached with Allen head screws and lock nuts, out class the industry standard of stamped safety latches. The induction hardened, 100 grade load chain provides 20% more strength then the common 80 grade load chain found on inferior lever hoists. All the internal parts are Zinc coated for additional corrosion protection. The patented fused brake disc design means little to no maintenance is required to keep these hoists operational. Every JLH Hoist is factory tested and comes with a signed test certificate from the factory. All JLH lever hoists comply with ANSI/ASME B30.21 and HST-3 standards