noun
multi-tool; multitool; Swiss Army knife
Refers to a portable tool that combines several functions in one device, often including pliers, knives, screwdrivers, etc. The term is used for both generic multi-tools and the Swiss Army knife brand.
キャンプにはマルチツールを持っていくと便利だ。
It's handy to bring a multi-tool when camping.
彼はキーホルダーに小さなマルチツールを付けている。
He has a small multi-tool attached to his keychain.