Crosby® McKissick 10" Sheave Block w/ Hook: 5/8"-3/4" wireCrosby McKissick 10" Snatch Block with Hook 5 8" to 3 4" Wire Rope The Crosby McKissick 10" Sheave Snatch Block with Hook is engineered for high capacity lifting, directional rigging, and load management. Designed for use with 5 8" to 3 4" wire rope, this Type 418 snatch block features a forged alloy, heat treated hook and bronze bushings for consistent, smooth operation under load. It supports an 8 ton working load limit and maintains a 4: 1 safety