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7mm スパナ

pricing outside the sweet spot ($619.95 avg) — 7mm スパナ doesn't clear our bar today.

Flapen Score

47
Skip it

Ranks 3,599 of 4,191 DIY・工具・ガーデン niches · −10 vs the category median of 57

Market size 55Growth 20Conversion 79Competition 24Returns 98Price range 0Avg price 0Brand share 33Review moat 70Quality gap 73
This niche Category average · 4,191 niches

Is 7mm スパナ profitable on Amazon?

According to Flapen's Amazon Japan niche tracking, 7mm スパナ is a ¥396K/yr Amazon Japan market (8K searches/yr). The top 5 brands hold 85% of demand. Verdict: Skip it — 47/100.

7mm スパナ: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved -10.7% over the last 90 days and 8.0% of searches end in a purchase.

¥396K

revenue / yr

Units sold / yr1K
Search volume / yr-10.7%8K
Conversion rate8.0%
Avg price¥619.95

Who owns the niche?

The top 5 brands hold 85% of demand, so 15% of the market is open.

15%

open market share

Brands · sellers11 · 55
Top-5 product click share71%
Open market15%
Avg brand age83 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 · 15 products

Sponsored placement67%
New entrants (1y)1· 0 succeeded
Avg rating4.3★
Avg reviews692

Top 7mm スパナ 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 capture 71% of clicks — a locked-up shelf that new listings rarely crack.

¥0¥40K¥79K¥119K¥158K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

11 falling

Sellers

55

Top-5 brand share

85%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

11%

  • トネ(TONE)58%
  • Gulenvailo14%
  • トラスコ中山(TRUSCO)5%
  • DFsucces4%
  • SIGNET(シグネット)4%
  • FLZOSPER4%
  • Open — no brand owns it (5 brands, 11%)

7mm スパナ demand & seasonality

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

Volume8KCVR8.0%Products15Brands11Top 5 Brands85%OOS Rate0.0%Rating4.3★Reviews692Avg BSR#11
200150Spike '26Prime Day '26Apr '26Apr '26May '26May '26May '26Jun '26Jun '26Jul '26Jul '26

What reviews say buyers love and hate about 7mm スパナ

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

What buyers love

91% of reviews
総合品質24%

品質はそこそこ、これで充分です。

コストパフォーマンス20%

お手頃価格

使用の容易さ13%

使い勝手が楽

サイズ全体13%

よく使うサイズと、自転車ペダル用のサイズが揃ってホルダーまで付いてるので大満足です。

コンパクトさ6%

コンパクトでイイ

What buyers complain about

80% of reviews
サイズ全体33%

10mmのスパナも11mmのスパナも10mmのナットより小さい

互換性-全体11%
総合品質11%

つまるところ良い工具はトータルで安くつく。

材料の品質11%

材質は弱い部分などはありますが、簡単なメンテナンスなどには重宝してます。

耐久性6%

耐久性はわかりませんが

7mm スパナ return rate & reasons

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

0.5%

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
77%
2厚み
8%
3機能全体
8%
4不良材料/部品
8%

Common 7mm スパナ questions

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

Flapen scores 7mm スパナ 47/100 on Amazon Japan — Skip it. The niche generates ¥396K/yr across 15 tracked products. 0 of 1 products launched in the last 360 days are still selling. Search demand moved -10.7% over the last 90 days.
7mm スパナ buyers on Amazon Japan complain most about サイズ全体, 互換性-全体, 総合品質, the themes mined from the niche's reviews. Its return rate is 0.5%.