equipment and materials; tools and supplies
Refers to the physical items needed for a task, including both tools and consumable materials. Common in technical, industrial, and hobby contexts.
Prepare the equipment and materials needed for the experiment.
This shop carries photographic equipment and supplies.
I gathered the equipment needed for the experiment.
Please handle this equipment carefully.
They set up the filming equipment at the site.
There was a shortage of medical equipment at the disaster site.
用具 refers to equipment for a specific activity (sports, cleaning), whereas 器材 is broader and more technical, often industrial or scientific.
機材 and 器材 share the same reading きざい but 機材 leans toward machinery and apparatus, while 器材 explicitly covers consumable materials too.
Compound of 器 (utensil, container) and 材 (material, ingredient). The exact historical derivation is uncertain, but the combination naturally yields the meaning 'equipment and materials'.