whetstone holder
Skip itA small market ($48K/yr) — this niche doesn't clear our bar today.
Avg price
Great$21.39avg listing price — sweet spot $15–$100
Returns
Great1.4%return rate — above 5% kills the launch gate
Price range
Great$7.92–$48.35cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good526.63avg incumbent reviews — the moat a new listing must climb
Conversion
Good5.0%search→purchase rate — share of searches ending in a sale
Brand share
Good75%top-5 brand share — brands hold most of the demand
Competition
Okay63%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-2.1%90-day search growth — must beat 0% to launch
Market size
Bad$48K$48K/yr · 45K searches
According to Flapen's Amazon United States niche tracking, whetstone holder is a $48K/yr Amazon United States market (45K searches/yr). The top 5 brands hold 75% of demand. Demand peaks in Jan–Dec. Verdict: Skip it — 46/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
whetstone holder market data
- Units sold / yr
- 2K–3K
- avg 100–250/product
- Revenue / yr
- $43K–$53K
- units × avg price
- Conversion rate
- 5.0%
- Avg BSR
- #379
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 79%
- Out of stock
- 0.0%
- Avg brand age
- 58 months
- Avg seller age
- 173 days
Competition & brand share
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.Brands
14 flat
Sellers
21
Top-5 brand share
75%
Top 20: 100%
Top-5 click share
63%
Top 20: 100%
Open market
20%
- POWERTEC31%
- Kota Japan16%
- SHARPAL14%
- SCOTTCHEN7%
- QWORK5%
- HIPULX5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -2.1% search growth over the last 90 days.Peak months: Jan, Dec · busiest ÷ quietest = 1.6×
Top whetstone holder 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.
All 19 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
POWERTEC Sharpening Stone Holder Adjustable Whetstone Stone Holder 5.5 to 9 Non-Slip Rubber Base for Secure Knives Sharpening for Kitchen w/knife Sharpener Wet Diamond Stone(71013)
POWERTEC$15.354.7★2,071 rev
Kota Japan Stainless Steel Whetstone Holder Non-Slip Fits 6-8.5 in Stones
Kota Japan$18.134.7★458 rev
SHARPAL 160H 2PCS 2-in-1 Whetstone and Sharpening Stone Holder&Storage Case
SHARPAL$19.844.7★136 rev
SHARPAL 149H Sharpen-No-Mess Silicone Sharpening Stone & Whetstone Tray
SHARPAL$19.564.5★207 rev
SCOTTCHEN 17-3/4 Sink Bridge Whetstone Holder - Heavy Duty 304 Stainless Steel Sharpening Stone Base for Kitchen Sink - Adjustable Non-Slip Rubber Rust-Proof Fits Stones 3-1/4 to 14-1/4
SCOTTCHEN$40.034.7★631 rev
Newest
by launch date
No-Mess Knife Sharpening Kit - Leak-Proof Silicone Tray & Absorbent Diatomite Mat with 15 Angled Whetstone Holder & Angle Guide | All-in-One Sharpening System
Miosyn$15.211 rev
HIPULX Non-Slip Sharpening Stone Holder Adjustable Whetstone Holder for Water Stones Diamond Stones 304 Stainless Steel Clamp for Knife Sharpening Woodworking Tools (Fits 5 9/16 - 8 11/16)
HIPULX$17.477 rev
Universal Sharpener Base
DMT (Diamond Machining Technology)$25.1116 rev
Sharpening Stone Holder Stainless Steel Whetstone holder Sharpening Stone
SmileBear$11.991 rev
SHARPAL 160H 2PCS 2-in-1 Whetstone and Sharpening Stone Holder&Storage Case
SHARPAL$19.84136 rev
Trending
90-day click momentumNo-Mess Knife Sharpening Kit - Leak-Proof Silicone Tray & Absorbent Diatomite Mat with 15 Angled Whetstone Holder & Angle Guide | All-in-One Sharpening System
Miosyn$15.215.0★
HIPULX Non-Slip Sharpening Stone Holder Adjustable Whetstone Holder for Water Stones Diamond Stones 304 Stainless Steel Clamp for Knife Sharpening Woodworking Tools (Fits 5 9/16 - 8 11/16)
HIPULX$17.474.5★
Sharpening Stone Holder Stainless Steel Whetstone holder Sharpening Stone
SmileBear$11.995.0★
QWORK Sharpening Stone Holder Universal Sharpening Whetstone Holder Adjustable from 5-1/2 to 9 Inches No-Slip Sharpening Stone Base for Various Whetstone Oils Stone or Diamond Stones
QWORK$14.134.7★
Fuxinghao Sharpening Stone Holder Stainless Steel Whetstone Holder Sink Bridge Adjustable No-Slip Grindstone Holder with Wing Nuts for Easy Honing
Fuxinghao$16.004.1★
What buyers say about whetstone holder
What buyers praise and complain about, mined from review topics.What buyers love
“it sharpens them quickly”
“Seems well made”
“Well worth it”
“works great”
“Fits an assortment of stones”
“keeps my clothes clean”
“Very useful”
“as advertised”
“Sturdy, secure, high quality and very affordable”
“Its plastic construction is durable enough for daily use”
What buyers complain about
“Too Small”
“Not great, hard to use”
“Not as good as advertise”
“show how bad you are at keeping this angle when sharpening”
“it doesn't work like I thought it would”
“To flimsy”
“Very lightweight and not easy to maneuver”
“this is cheaply made”
“the most minor movement of your hand will throw the bubble way off”
“I wish it was made with a little more durable material cause now there are cuts in my product”
Top return reasons
Common questions
- Is whetstone holder profitable to sell on Amazon United States?
- The niche generates $48K/yr across 19 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -2.1%. Flapen's verdict: Skip it (46/100).
- How competitive is the whetstone holder niche?
- 14 brands and 21 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 75% of demand.
- What do buyers complain about in whetstone holder?
- Top complaints mined from reviews: Size-Overall, Ease Of Use, Advertised Vs Actual Product. The return rate is 1.4%.
- When does demand for whetstone holder peak?
- Demand peaks in Jan–Dec; the busiest month runs 1.6× the quietest.
- What does it cost to enter the whetstone holder niche?
- Listings span $7.92–$48.35; the average listing price is $21.39 (sweet spot $15–$100). The average incumbent carries 527 reviews — the moat a new listing must climb.