How to say "kit" in Japanese

• キットCommon
  nounCovers 'kit' in its familiar English sense: a set of parts, tools, or materials supplied together for a particular job, such as assembly or repair. As a direct loanword, it is the closest match.
  配線はいせんを間違まちがえないように注意ちゅういしてキットを組み立くみたてた。↗

  I built the kit taking care not to make mistakes in the wiring.
• 一式いっしきCommon
  nounMeans a complete set or outfit — all the items taken together as a whole. It fits 'kit' only in that 'everything supplied' sense; for a packaged kit of parts or tools, キット is the word.
  用具ようぐを一式いっしき貸かしてください。↗

  Lend me a tool set please.

Use 「キット」 for 'kit' in its English sense — a set of parts or tools supplied together for a job — and 一式 when you mean a complete set or outfit, everything taken as one whole.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• キットkit
• 一式いっしき(complete) set
• 道具一式どうぐいっしきset of tools (implements)
• 九工大きゅうこうだいKyushu Institute of Technology (abbr)