Pruner and Pruning hook

Pruner noun - A long-handled pruning saw with a curved blade at the end and sometimes a clipper; used to prune small trees.

Pruning hook is a synonym for pruner. In some cases you can use "Pruning hook" instead a noun "Pruner".

Pruning hook noun - A long-handled pruning saw with a curved blade at the end and sometimes a clipper; used to prune small trees.

Pruner is a synonym for pruning hook. You can use "Pruner" instead a noun phrase "Pruning hook".