4 Ton Snatch Block w/ SHACKLE Wire Rope Sheave Tow Shackle Tree Sling Wrecker, 4PK

Working Load Limit: 4 Tons Sheave Diameter: 4-1/2 in Wire Rope Size: 1/2 in End Fitting: Shackle Comes With Grease Fittings Image is for illustration only. The color of the shackle pin may differ from image. The snatch block is a pulley system with covered and protected yet removable sides. It is possible to unscrew or remove one side, slip in the winch cable or rope and then re protect the same side to prevent the cable from leaving the groove. It has either a hook or a shackle at it’s tip. Snatch blocks or pulleys are used to change the direction of the pull to a different angle relative to a fixed point. They are also used to create more complex pulley structures and gain mechanical advantage. A pull of 10 lbs can be changed to a pull of 80 or even 800 lbs depending upon the mechanical advantage offered by the pulley structure.