hook and blade or scissors-type hand pruning tool intended for cutting single. small diameter stems. Also called pruning shears. bypass pruners. or hand pruners (contrast with anvil-type pruning tool and hand pruning shears).
secateurs (Wikipedia)
Pruning shears, also called hand pruners (in American English), or secateurs, are a type of scissors for use on plants. They are strong enough to prune hard branches of trees and shrubs, sometimes up to two centimetres thick. They are used in gardening, arboriculture, farming, flower arranging, and nature conservation, where fine-scale habitat management is required.
Loppers are a larger, two-handed, long-handled version for branches thicker than pruning shears can cut.