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プラグレンチ 14mm

プラグレンチ 14mm shows a $3.0M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Flapen Score

59
Worth a look

Top 39% of 4,191 DIY・工具・ガーデン niches · +2 vs the category median of 57

Market size 96Growth 16Conversion 81Competition 42Returns 96Price range 0Avg price 0Brand share 65Review moat 79Quality gap 73
This niche Category average · 4,191 niches

Is プラグレンチ 14mm profitable on Amazon?

According to Flapen's Amazon Japan niche tracking, プラグレンチ 14mm is a ¥3.0M/yr Amazon Japan market (35K searches/yr). The top 5 brands hold 66% of demand. Verdict: Worth a look — 59/100.

プラグレンチ 14mm: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved -17.1% over the last 90 days and 8.5% of searches end in a purchase.

¥3.0M

revenue / yr

Units sold / yr3K
Search volume / yr-17.1%35K
Conversion rate8.5%
Avg price¥1000.86

Who owns the niche?

The top 5 brands hold 66% of demand, so 34% of the market is open.

34%

open market share

Brands · sellers21 · 76
Top-5 product click share60%
Open market34%
Avg brand age51 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.3★ — the gap to enter on.

0/100

page quality · 23 products

Sponsored placement70%
New entrants (1y)3· 1 succeeded
Avg rating4.3★
Avg reviews417

Top プラグレンチ 14mm products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.

¥0¥151K¥302K¥453K¥604K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

21 flat

Sellers

76

Top-5 brand share

66%

Top 20: 99%

Top-5 click share

60%

Top 20: 97%

Open market

29%

  • トネ(TONE)18%
  • エーモン(amon)16%
  • VEAGIA15%
  • Pseul10%
  • Mirhua7%
  • 京都機械工具(KTC)5%

プラグレンチ 14mm demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume35KCVR8.5%Products23Brands21Top 5 Brands66%OOS Rate7.7%Rating4.3★Reviews417Avg BSR#43
1K600Spike '24Spike '25Prime Day '25Black Friday '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

What reviews say buyers love and hate about プラグレンチ 14mm

What buyers mention most, as a share of all reviews.

What buyers love

91% of reviews
使用の容易さ26%

普通に使えます。

磁力/吸着力19%

磁石安心です

コストパフォーマンス17%

お手頃価格

コネクタ/ポート/プラグ10%

必要なサイズが揃っていて使いやすいT型プラグレンチセット

総合品質8%

良い商品です。

What buyers complain about

65% of reviews
磁力/吸着力10%

磁石が弱くプラグが落ちかけてしまいます。

総合品質9%

品質に難ありです。

コストパフォーマンス8%

値段なりです。

サイズ全体8%

延長を使うと微妙に長すぎて

厚み7%

デミオ(平成25年5月)/スカイアクティブには肉厚の薄いタイプが必須です

プラグレンチ 14mm return rate & reasons

Why buyers send it back, as a share of all return requests.

0.8%

Return rate

0%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1サイズ全体
35%
2広告と実際の製品の違い
12%
3磁力/吸着力
12%
4コネクタ/ポート/プラグ
9%
5商品の状態
6%

Common プラグレンチ 14mm questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores プラグレンチ 14mm 59/100 on Amazon Japan — Worth a look. The niche generates ¥3.0M/yr across 23 tracked products. 1 of 3 products launched in the last 360 days are still selling. Search demand moved -17.1% over the last 90 days.
Search demand for プラグレンチ 14mm on Amazon Japan is steady year-round — the busiest month runs 1.3× the quietest.