The Jet L-100 Series Hand Chain Hoist features a sealed ball bearing design for a more efficient, smooth operation. The hoist has an all steel construction for increased durability and a lightweight, compact design for use in tight quarters. The grade 100 load chain is stronger than the grade 80 chain, for extended life of the hoist. The L-100 Series has many safety features, including a weston style dual pawl brake system, patented fused brake design and alloy steel hooks that rotate 360 degrees and slowly stretch to indicate an overload situation. The overload protection model has a slip clutch to engage at 125% of the hoist load capacity. Standards: Complies with OSHA Regulations, ANSI/ASME B30.16 and HST-2 Standards, Load tested to 125% of capacity with certificate.