Is ホールソー 50mm profitable to sell on Amazon Japan?

The niche generates ¥1.5M/yr across 26 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is -28.7%. Flapen's verdict: Worth a look (57/100).

How competitive is the ホールソー 50mm niche?

18 brands and 43 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 70% of demand.

What do buyers complain about in ホールソー 50mm?

Top complaints mined from reviews: 耐久性, サイズ全体, 総合品質. The return rate is 1.0%.

What does it cost to enter the ホールソー 50mm niche?

Listings span ¥740.77–¥3543.16; the average listing price is ¥1582.24 (sweet spot $15–$100). The average incumbent carries 547 reviews — the moat a new listing must climb.

ホールソー 50mm

Worth a look

Shows beatable incumbent ratings (3.8★), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Quality gap

Incredible3.8★

avg incumbent rating — lower means beatable quality

Returns

Great1.0%

return rate — above 5% kills the launch gate

Market size

Great¥1.5M

¥1.5M/yr · 16K searches

Review moat

Good546.58

avg incumbent reviews — the moat a new listing must climb

Conversion

Good5.7%

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

Brand share

Good70%

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

Competition

Good54%

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

Growth

Bad-28.7%

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

Avg price

Bad¥1582.24

avg listing price — sweet spot $15–$100

Price range

Bad¥740.77–¥3543.16

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

Signals No Dominant Brand Low Review Barrier Quality Gap High Price Out of Stock

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.

Data updated Jul 31, 2026 · scored weekly · How we score niches

ホールソー 50mm market data

Units sold / yr: 500–750; avg 0–100/product
Revenue / yr: ¥791K–¥1.2M; units × avg price
Conversion rate: 5.7%
Avg BSR: #74
Page quality: 0%
Prime: 96%
Sponsored: 58%
Out of stock: 12.6%
Avg brand age: 64 months
Avg seller age: 202 days

Competition & brand share

The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.

Brands

18 falling

Sellers

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%

Demand

Weekly Amazon search volume, last 8 weeks — -28.7% search growth over the last 90 days.

Open Trend

Top ホールソー 50mm 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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

Top sellers

by 90-day click share

ホールソーバイメタルホールカッター穴あけドリルドライバー適用ドリルビット50mm

ApexTitan¥789.473.7★75 rev

[ネセクト]バイメタルホールソープロフェッショナル JIS SKH59 HSS鋼センタードリル不等ピッチ刃高速切削＆高耐久[日本国内企画品] (50mm)

nesekt（ネセクト）¥1330.084.0★115 rev

【現役電気工事士・大工推薦&監修】超硬ステンレスホールソー穴あけ電動ドリルホルソーホールカッター ShopXJ (1個 50ｍｍ)

ShopXJ¥2328.253.9★1,954 rev

TIDEWAY-JP ホールソーバイメタル穴あけドリルビット切削工具鉄アルミ石膏ボードプラスチック木材などに切削直径50mm

TIDEWAY¥1109.763.7★2,902 rev

バイメタルホールソードリルビット木材石膏ボード樹脂プラスチック合板アルミステンレス鉄穴あけ切削直径50mm 上質

LAIWEI¥1145.043.7★612 rev

Newest

by launch date

[ネセクト]バイメタルホールソーベーシックコバルトハイスM42 HSS鋼センタードリル不等ピッチ刃鉄アルミ木工穴あけ金属 DIY[日本国内企画品] (50mm)

nesekt（ネセクト）¥1031.2514 rev

2mo ago

ホールソーバイメタルホールカッター穴あけドリルドライバー適用鉄アルミ石膏ボードプラスチック木材などに切削直径50mm

CAMMIC¥1089.2824 rev

3mo ago

[ネセクト]バイメタルホールソープロフェッショナル JIS SKH59 HSS鋼センタードリル不等ピッチ刃高速切削＆高耐久[日本国内企画品] (50mm)

nesekt（ネセクト）¥1330.08115 rev

7mo ago

ホールソーバイメタルホールカッター穴あけドリルドライバー適用ドリルビット50mm

ApexTitan¥789.4775 rev

9mo ago

[ネセクト]バイメタルホールソープロフェッショナル JIS SKH59 HSS鋼センタードリル不等ピッチ刃高速切削＆高耐久[日本国内企画品] (100mm)

nesekt（ネセクト）¥1643.00115 rev

1y ago

What buyers say about ホールソー 50mm

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

What buyers love

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”

清掃の容易さ5%

“非常にきれいに穴があいた。”

What buyers complain about

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”

Top return reasons

サイズ全体50%

互換性-全体20%

不良材料/部品6%

機能全体5%

広告と実際の製品の違い4%

追加アイテム/添付ファイル3%

ロック機構3%

総合品質3%

耐久性3%

使用の容易さ2%

Common questions

Is ホールソー 50mm profitable to sell on Amazon Japan?: The niche generates ¥1.5M/yr across 26 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is -28.7%. Flapen's verdict: Worth a look (57/100).
How competitive is the ホールソー 50mm niche?: 18 brands and 43 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 70% of demand.
What do buyers complain about in ホールソー 50mm?: Top complaints mined from reviews: 耐久性, サイズ全体, 総合品質. The return rate is 1.0%.
What does it cost to enter the ホールソー 50mm niche?: Listings span ¥740.77–¥3543.16; the average listing price is ¥1582.24 (sweet spot $15–$100). The average incumbent carries 547 reviews — the moat a new listing must climb.