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ホールソー 50mm

ホールソー 50mm shows beatable incumbent ratings (3.8★), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Flapen Score

57
Worth a look

Ranks 2,057 of 4,191 DIY・工具・ガーデン niches · on the category median

Market size 86Growth 11Conversion 64Competition 52Returns 95Price range 0Avg price 0Brand share 58Review moat 74Quality gap 97
This niche Category average · 4,191 niches

Is ホールソー 50mm profitable on Amazon?

According to Flapen's Amazon Japan niche tracking, ホールソー 50mm is a ¥1.5M/yr Amazon Japan market (16K searches/yr). The top 5 brands hold 70% of demand. Verdict: Worth a look — 57/100.

ホールソー 50mm: 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 -28.7% over the last 90 days and 5.7% of searches end in a purchase.

¥1.5M

revenue / yr

Units sold / yr750
Search volume / yr-28.7%16K
Conversion rate5.7%
Avg price¥1582.24

Who owns the niche?

The top 5 brands hold 70% of demand, so 30% of the market is open.

30%

open market share

Brands · sellers18 · 43
Top-5 product click share54%
Open market30%
Avg brand age64 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 3.8★ — the gap to enter on.

0/100

page quality · 26 products

Sponsored placement58%
New entrants (1y)4· 2 succeeded
Avg rating3.8★
Avg reviews547

Top ホールソー 50mm 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 54% of clicks — established leaders, but buyers still shop beyond them.

¥0¥74K¥148K¥221K¥295K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

18 falling

Sellers

43

Top-5 brand share

70%

Top 20: 100%

Top-5 click share

54%

Top 20: 95%

Open market

25%

  • nesekt(ネセクト)19%
  • ApexTitan18%
  • TIDEWAY13%
  • LAIWEI11%
  • ShopXJ10%
  • TAKAGI5%

ホールソー 50mm demand & seasonality

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

Volume16KCVR5.7%Products26Brands18Top 5 Brands70%OOS Rate12.6%Rating3.8★Reviews547Avg BSR#74
350250Prime Day '26Jun '26Jun '26Jun '26Jun '26Jul '26Jul '26Jul '26Jul '26

What reviews say buyers love and hate about ホールソー 50mm

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

What buyers love

95% of reviews
コストパフォーマンス32%

コスパ良き

耐久性18%

耐久性が良い

サイズ全体14%

大きさが沢山有るのはいいです

使用の容易さ14%

使える

強さ14%

丈夫だと思います

What buyers complain about

95% of reviews
耐久性40%

直ぐ壊れた

サイズ全体30%

正確なサイズの穴を開けられるというものではありません。

総合品質10%

安いから仕方ないのか

こわばり10%

四十八ミリでは窮屈、. 四十九ミリでは余りすぎる。

厚み5%

この太さだと中々使用頻度は少ない

ホールソー 50mm return rate & reasons

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

1.0%

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
50%
2互換性-全体
20%
3不良材料/部品
6%
4機能全体
5%
5広告と実際の製品の違い
4%

Common ホールソー 50mm questions

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

Flapen scores ホールソー 50mm 57/100 on Amazon Japan — Worth a look. The niche generates ¥1.5M/yr across 26 tracked products. 2 of 4 products launched in the last 360 days are still selling. Search demand moved -28.7% over the last 90 days.
ホールソー 50mm buyers on Amazon Japan complain most about 耐久性, サイズ全体, 総合品質, the themes mined from the niche's reviews. Its return rate is 1.0%.