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55

9.5mm ソケットセット

Worth a look

Shows low returns (0.6%), but pricing outside the sweet spot ($2843.63 avg) keeps it on the watch list.

Market size 94Growth 22Conversion 22Competition 65Returns 97Price range 0Avg price 0Brand share 59Review moat 57Quality gap 68

Returns

Incredible0.6%

return rate — above 5% kills the launch gate

Market size

Great¥2.0M

¥2.0M/yr · 38K searches

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Competition

Good46%

top-5 click share — leaders hold, buyers still browse

Brand share

Good70%

top-5 brand share — brands hold most of the demand

Review moat

Good1,209.29

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-5.2%

90-day search growth — must beat 0% to launch

Conversion

Bad1.8%

search→purchase rate — share of searches ending in a sale

Avg price

Bad¥2843.63

avg listing price — sweet spot $15–$100

Price range

Bad¥909.79–¥9435.22

cheapest to priciest tracked listing — scored on the share inside $15–$100

According to Flapen's Amazon Japan niche tracking, 9.5mm ソケットセット is a ¥2.0M/yr Amazon Japan market (38K searches/yr). The top 5 brands hold 70% of demand. Verdict: Worth a look — 55/100.

Data updated Jul 30, 2026 · scored weekly · How we score niches

9.5mm ソケットセット market data

Units sold / yr
500–750
avg 0–100/product
Revenue / yr
¥1.4M–¥2.1M
units × avg price
Conversion rate
1.8%
Avg BSR
#503
Page quality
0%
Prime
94%
Sponsored
68%
Out of stock
1.5%
Avg brand age
63 months
Avg seller age
177 days

Competition & brand share

The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.

Brands

17 falling

Sellers

91

Top-5 brand share

70%

Top 20: 100%

Top-5 click share

46%

Top 20: 81%

Open market

25%

  • SK11(エスケー11)35%
  • 近与(KONYO)9%
  • トネ(TONE)9%
  • WORKPRO9%
  • Amazonベーシック(Amazon Basics)7%
  • SIGNET(シグネット)5%

Demand & seasonality

Weekly Amazon search volume, last 88 weeks — -5.2% search growth over the last 90 days.
1K600Holiday '24Spike '25Black Friday '25Spike '26Prime Day '26DecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

No pronounced peak months · busiest ÷ quietest = 1.7×

Top 9.5mm ソケットセット search terms

  • 9.5mm ソケットセット13K/yr
  • ソケット セット11K/yr
  • ソケットセット 9.58K/yr
  • socket set7K/yr
All search terms

Top 9.5mm ソケットセット products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%5%¥98K10%¥195K15%¥293K20%¥390K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about 9.5mm ソケットセット

What buyers praise and complain about, mined from review topics.

What buyers love

コストパフォーマンス27%

“リーズナブル”

使用の容易さ20%

“充分使えます”

総合品質16%

“さすが、メーカー品。”

サイズ全体6%

“サイズが沢山有り、使い易そうです。”

耐久性4%

“問題なく使えています”

強さ3%

“しっかりとした造りで良さそうです。”

メンテナンスと修理2%

“日常整備に使いやすい工具セット”

材料の品質1%

“ケースもスチール製で傷も無く届いたので満足しています。”

コンパクトさ1%

“小さくてコンパクト”

保管容量1%

“収納しやすい”

What buyers complain about

総合品質16%

“安いのでしかたありませんが。”

耐久性10%

“捻れてしまいました。”

コストパフォーマンス7%

“ラチェットレンチのみ買おうかと思ったが意外に高い。”

サイズ全体7%

“実際には更に小さい”

測定/読み取り精度6%

“18ミリが無いのであったらよかったけど。”

強さ4%

“弱すぎる”

コネクタ/ポート/プラグ4%

“入らないソケットがある”

商品の状態4%

“新品かってこれは最悪すぎます”

厚み3%

“薄いボックスセット”

機能全体3%

“力のかかる作業には向きません。”

Top return reasons

サイズ全体36%
不良材料/部品16%
総合品質6%
接着性/粘着性5%
コネクタ/ポート/プラグ4%
広告と実際の製品の違い4%
機能全体3%
メンテナンスと修理3%
メカニズムの問題3%
使用の容易さ3%

Common questions

Is 9.5mm ソケットセット profitable to sell on Amazon Japan?
The niche generates ¥2.0M/yr across 34 tracked products. 90-day search growth is -5.2%. Flapen's verdict: Worth a look (55/100).
How competitive is the 9.5mm ソケットセット niche?
17 brands and 91 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 70% of demand.
What do buyers complain about in 9.5mm ソケットセット?
Top complaints mined from reviews: 総合品質, 耐久性, コストパフォーマンス. The return rate is 0.6%.
When does demand for 9.5mm ソケットセット peak?
Demand is steady year-round — the busiest month runs 1.7× the quietest.
What does it cost to enter the 9.5mm ソケットセット niche?
Listings span ¥909.79–¥9435.22; the average listing price is ¥2843.63 (sweet spot $15–$100). The average incumbent carries 1,209 reviews — the moat a new listing must climb.