Descriptions (ArmstrongX - lever block) a) Overload clutch - A feature that protects the hoist machanism and prevent operator from harm due to overloading. This special feature is not available in most chain blocks. b) Fitted with shroud - Ensure load chain won't come loose or fall out. Also, it prevents operator's hands and fingers slip in the hoist or contact with the load chain when under tension.. c) Double Pawl Mechanism - additional redundancy built in to the mechanism to provide longer working life. d) Forged upper and lower hooks with safety latch e) Hook spin on hook for easier positioning and use. f) Range: 1.0 ton – 6.3 tonnes. read more