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62

17mm ソケット

Worth a look

Shows a $4.3M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 97Growth 16Conversion 69Competition 79Returns 97Price range 0Avg price 0Brand share 57Review moat 79Quality gap 72

Market size

Incredible¥4.3M

¥4.3M/yr · 70K searches

Returns

Incredible0.5%

return rate — above 5% kills the launch gate

Competition

Great36%

top-5 click share — an open shelf

Review moat

Great422.29

avg incumbent reviews — the moat a new listing must climb

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Conversion

Good6.2%

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

Brand share

Good71%

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

Growth

Bad-18.6%

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

Avg price

Bad¥981.05

avg listing price — sweet spot $15–$100

Price range

Bad¥346.78–¥3598.10

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

According to Flapen's Amazon Japan niche tracking, 17mm ソケット is a ¥4.3M/yr Amazon Japan market (70K searches/yr). The top 5 brands hold 71% of demand. Verdict: Worth a look — 62/100.

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

17mm ソケット market data

Units sold / yr
3K–4K
avg 0–100/product
Revenue / yr
¥2.9M–¥3.9M
units × avg price
Conversion rate
6.2%
Avg BSR
#74
Page quality
0%
Prime
95%
Sponsored
58%
Out of stock
0.4%
Avg brand age
67 months
Avg seller age
157 days

Competition & brand share

Clicks spread well past the top 5 (36% combined) — an open shelf where new products get seen.

Brands

18 falling

Sellers

109

Top-5 brand share

71%

Top 20: 100%

Top-5 click share

36%

Top 20: 81%

Open market

23%

  • トネ(TONE)25%
  • ベッセル(VESSEL)22%
  • タジマ9%
  • SK11(エスケー11)8%
  • TOP-37%
  • TOP6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -18.6% search growth over the last 90 days.
2K1KSpike '24Holiday '24Black Friday '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

Top 17mm ソケット search terms

  • 17mm ソケット23K/yr
  • ソケット 17mm7K/yr
  • ソケットレンチ 17mm6K/yr
  • 17 ソケット6K/yr
  • インパクト ソケット 174K/yr
  • 17ソケットインパクト用5K/yr
  • 17mm4K/yr
  • ソケット 174K/yr
  • 17ミリ ソケット4K/yr
  • レースウェイソケット 175K/yr
All search terms

Top 17mm ソケット 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%3%¥128K6%¥257K9%¥385K12%¥514K101001K10K 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 17mm ソケット

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

What buyers love

使用の容易さ26%

“使い勝手良し”

コストパフォーマンス22%

“お手頃でコスパ良いです。”

総合品質12%

“ケースの作りが良い”

サイズ全体7%

“FIT GR バッテリー交換にシンデレラフィット。 10mm購入。この小ささと貫通ソケットは、補機バッテリの交換用車載工具にぴったり。FIT GR用”

耐久性5%

“今まで使っていても壊れず満足してます”

強さ4%

“しっかりしていて使い勝手いいです”

保管容量2%

“ケース一つできれいに収納されており、便利の一言。”

コネクタ/ポート/プラグ2%

“トリプルソケットは便利ですね。”

メンテナンスと修理2%

“軽整備に最適”

傷に強い2%

“目立つ表示、キズがつきにくい工夫、エエものだと感じます。”

What buyers complain about

耐久性16%

“割れます”

機能全体11%

“ナメる感じで使えませんでした”

総合品質11%

“安いけど普通につかえます”

使用の容易さ8%

“入りにくい”

薄い5%

“ちょっと薄い”

握り心地3%

“グリップが動きます”

サイズ全体3%

“小ぶりなセットなのに多種のネジに対応できる”

コストパフォーマンス3%

“ラチェットレンチセットって、高価な物。”

厚み3%

“薄さ”

強さ3%

“ケースがイマイチ”

Top return reasons

サイズ全体42%
コネクタ/ポート/プラグ12%
使用の容易さ12%
不良材料/部品10%
メカニズムの問題6%
ペイントの品質4%
磁力/吸着力4%
広告と実際の製品の違い4%
追加アイテム/添付ファイル2%
機能全体2%

Common questions

Is 17mm ソケット profitable to sell on Amazon Japan?
The niche generates ¥4.3M/yr across 38 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -18.6%. Flapen's verdict: Worth a look (62/100).
How competitive is the 17mm ソケット niche?
18 brands and 109 sellers compete. The top 5 products take 36% of clicks and top 5 brands hold 71% of demand.
What do buyers complain about in 17mm ソケット?
Top complaints mined from reviews: 耐久性, 機能全体, 総合品質. The return rate is 0.5%.
When does demand for 17mm ソケット peak?
Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the 17mm ソケット niche?
Listings span ¥346.78–¥3598.10; the average listing price is ¥981.05 (sweet spot $15–$100). The average incumbent carries 422 reviews — the moat a new listing must climb.