These popular ratchet blocks will grip loaded hauling lines to relieve the operator of much of the strain. The design of the sheave is such that when the rope is eased off it will slide around the sheave without the sheave turning, hence a hefty load can be lifted or controlled and held in place without having to hold the full weight. These blocks do NOT lock the rope so the load can be gently lowered against the fixed sheave. The Set screw in the three-way head allows the head to be fixed parallel, at right angles or to freely swivel. - Very popular with Professional Riggers Specifications Specification: CE Marked It gives an 8 to 1 advantage with a 180° wrap Sheave Ø (mm) 76 mmSheave Ø (in) 3 inLength (mm) 156 mmLength (in) 6 1/8 inWeight (g) 397 gWeight (lb) 0.88 lbShackle pin Ø (mm) 8 mmShackle pin Ø (in) 5/16 inMaximum line Ø (mm) 14 mmMaximum line Ø (in) 9/16 inMaximum rated load (kN) 5 kNMaximum rated load (lb) 1124 lbTurns clockwiseRope type Fiber CE certified to EN13157 for hand-operated lifting equipment. Product Data Sheet Product Manual