CMI Aluminum Rigging Block, 1/2 in, with 1/2 x 5 Sling

This CMI aluminum rigging block takes 1/2 in rope and comes paired with a 1/2 x 5 sling, so you have a ready-to-hang rigging point for pruning-size wood and smaller removals. Aluminum keeps the block light enough to carry up on your saddle.

A light rigging point you can carry up

For pruning cuts over a roof or small removals, you do not need a heavy steel block. An aluminum block sized for 1/2 in rope is light enough to carry on your saddle and strong enough for light to medium rigging. Hang it from the sling at the rigging point and run your lowering line through it.

Buying the block and sling together means they are sized to work as a pair. Compare other rigging kits if you rig heavier wood.

Kits like this also suit a climber who wants a personal rigging setup for small jobs without borrowing the crew's heavier gear.

Sizing and inspection

Stay within the rated strength of the block, the sling, and the rope, and remember that rigging loads are dynamic: a short drop can multiply the force on the rigging point. Use a lowering device on the ground to control the load.

Before each job, check the side plates, sheave, and axle for cracks, grooves, and wobble, and look over the sling for cuts and abrasion. Rig only within the rated strength of every component, inspect gear before each job, and make sure the crew is trained in rigging practice under ANSI Z133 and the manufacturer's instructions.