Japanese Whetstone
FailThe top 5 brands take 100% of clicks, so Japanese Whetstone is a Fail.
- Flapen Score
- 37 / 100Ranks 8,329 of 9,536 Tools & Home Improvement niches · −11 vs the category median of 4837
- Market size
- $64K/yr45K searches / yr
- 90-day growth
- -8.7%search demand this quarter
- Competition
- 79%top-5 click share · 5 brands · 91 sellers
Flapen Score
Japanese Whetstone against its category
The dotted line is the Tools & Home Improvement average. Past it, Japanese Whetstone is stronger. Inside it, weaker.
Market
The Japanese Whetstone market on Amazon at a glance
Shoppers on Amazon United States searched for Japanese Whetstone 45K times last year and spent an estimated $64K. All 5 brands take every click. Demand peaks in Jan–Dec. Flapen scores it 37 out of 100, a Fail.
01 · Demand
4.2% of searches ended in a purchase last week.
Shoppers searched for this 45K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. In the latest week, 4.2% of those searches ended in a purchase. Searches in the last 90 days moved -8.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated $64K a year.
- Searches, last 12 months
- 45K
- Growth, 90 days vs prior 90
- -8.7%
- Conversion, latest week
- 4.2%
- Market size, estimated
- $64Ka year
- Peak month
- December2.5× the quietest month
- Top search term
- king whetstone26K searches a year
02 · Price
A sale here is worth $33.83.
Listings sell for $33.83 on average, from $24.24 to $49.69. Amazon reports units sold in ranges. This niche sold 2K to 3K a year. The average listing sells 100 to 250 of them. At $33.83 that is $3K to $8K a year per listing.
- Average price
- $33.83inside the $15 to $100 sweet spot
- Price range
- $24.24–$49.69
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 2K–3K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $3K–$8K
- Returns
- 1.2%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
93% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #145 within Sharpening Stones. It carries 3,332 reviews at 4.56 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 93%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #145in Sharpening Stones
- Average rating
- 4.56 starsAmazon United States average 4.42 stars
- Average reviews
- 3,332per listing
- Listings tracked
- 14
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 73 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 73 months
Products
Top Japanese Whetstone products & what they sell for
Every tracked product: its share of the shelf, its reviews, and its price.
Top sellers
by 90-day click share
KING KW65 1000/6000 Grit Combination Whetstone with Plastic Base
- Price
- $28.09
- Rating
- 4.6/5
- Reviews
- 7,484
- Age
- 22y ago

KING Whetstone Starter Set Include 1000/6000 Grit Combination Whetstone made in Japan Knife Angle Holder B&B Japan Original Wiping Cloth and Stable Plastic Base
- Price
- $49.69
- Rating
- 4.5/5
- Reviews
- 696
- Age
- 7y ago

BJDesign King Whetstone Set 1000/6000 Grit Made in Japan 4 Pieces
- Price
- $49.10
- Rating
- 4.6/5
- Reviews
- 51
- Age
- 1y ago

King Pro Standard Whetstone Medium Grit
- Price
- $29.42
- Rating
- 4.6/5
- Reviews
- 410
- Age
- 24y ago

KING Grain Sharpening Stone #1000 Medium
- Price
- $28.06
- Rating
- 4.7/5
- Reviews
- 2,086
- Age
- 16y ago
Trending
90-day click momentum
King Medium Grain Sharpening Stone- #1000 - M (8-1/4 (Long) X 2-3/4 (Wide) X 2-1/4 (High)
- Price
- $39.43
- Rating
- 4.0/5
- Reviews
- 67
- Age
- 16y ago

Japanese King Knife Sharpener Whetstone Grit 220 G-45
- Price
- $24.41
- Rating
- 4.6/5
- Reviews
- 359
- Age
- 12y ago

King KDS Whetstone 1000/6000 Grit Double-Sided (Stone Only)
- Price
- $44.07
- Rating
- 4.7/5
- Reviews
- 684
- Age
- 10y ago

BJDesign King Whetstone Set 1000/6000 Grit Made in Japan 4 Pieces
- Price
- $49.10
- Rating
- 4.6/5
- Reviews
- 51
- Age
- 1y ago

KING Whetstone Starter Set Include 1000/6000 Grit Combination Whetstone made in Japan Knife Angle Holder B&B Japan Original Wiping Cloth and Stable Plastic Base
- Price
- $49.69
- Rating
- 4.5/5
- Reviews
- 696
- Age
- 7y ago
Newest
by launch date
BJDesign King Whetstone Set 1000/6000 Grit Made in Japan 4 Pieces
- Price
- $49.10
- Rating
- 4.6/5
- Reviews
- 51
- Age
- 1y ago

Intelitopia Complete Knife Sharpening Stone Set Dual Grit Whetstone 400/1000 3000/8000 Knife Sharpener with Leather Strop Flattening Stone Bamboo Base 3 Non-slip Rubber Bases & Angle Guide
- Price
- $29.64
- Rating
- 4.6/5
- Reviews
- 7,061
- Age
- 5y ago

KING Whetstone Starter Set Include 1000/6000 Grit Combination Whetstone made in Japan Knife Angle Holder B&B Japan Original Wiping Cloth and Stable Plastic Base
- Price
- $49.69
- Rating
- 4.5/5
- Reviews
- 696
- Age
- 7y ago

Sharp Pebble Whetstone Knife Sharpener 1000/6000 Grit Sharpening Stone
- Price
- $37.74
- Rating
- 4.6/5
- Reviews
- 25,575
- Age
- 10y ago

King KDS Whetstone 1000/6000 Grit Double-Sided (Stone Only)
- Price
- $44.07
- Rating
- 4.7/5
- Reviews
- 684
- Age
- 10y ago
Competition
Competition: brands, sellers & click share
The top 5 products take 79% of clicks. A locked shelf that new listings rarely crack.
Brands
5 flat
Sellers
91
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
79%
Top 20: 100%
Open market
0%
- KING57%
- King30%
- BJDesign8%
- Sharp Pebble2%
- Intelitopia2%
- Open — no brand owns it (0%)
Demand
Japanese Whetstone search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan, Dec · busiest ÷ quietest = 2.5×
Search terms
Top Japanese Whetstone search terms shoppers use
The exact words shoppers type, with yearly volume, growth, and conversion.
- king whetstone26K/yr
- king sharpening stone11K/yr
- king stone5K/yr
- king 1000/6000 whetstone3K/yr
Reviews and returns
What reviews say buyers love and hate about Japanese Whetstone
We read the reviews and the return reasons for every product selling here.
“Not great quality”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
16 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Japanese Whetstone questions
Answered from the same tracked data.









