21mm Wrench
FailThe products selling today already average 4.7★, so 21mm Wrench is a Fail.
- Flapen Score
- 49 / 100Top 44% of 9,536 Tools & Home Improvement niches · +1 vs the category median of 4849
- Market size
- $88K/yr54K searches / yr
- 90-day growth
- -1.3%search demand this quarter
- Competition
- 60%top-5 click share · 17 brands · 38 sellers
Flapen Score
21mm Wrench against its category
The dotted line is the Tools & Home Improvement average. Past it, 21mm Wrench is stronger. Inside it, weaker.
Market
The 21mm Wrench market on Amazon at a glance
Shoppers on Amazon United States searched for 21mm Wrench 54K times last year and spent an estimated $88K. The top 5 brands take 67% of clicks. Flapen scores it 49 out of 100, a Fail.
01 · Demand
12.0% of searches ended in a purchase last week.
Shoppers searched for this 54K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. In the latest week, 12.0% of those searches ended in a purchase. Searches in the last 90 days moved -1.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated $88K a year.
- Searches, last 12 months
- 54K
- Growth, 90 days vs prior 90
- -1.3%
- Conversion, latest week
- 12.0%
- Market size, estimated
- $88Ka year
- Peak month
- November1.6× the quietest month
- Top search term
- 21mm wrench36K searches a year
02 · Price
A sale here is worth $13.70.
Listings sell for $13.70 on average, from $6.17 to $41.02. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 250 to 500 of them. At $13.70 that is $3K to $7K a year per listing.
- Average price
- $13.70under the $15 to $100 sweet spot
- Price range
- $6.17–$41.02
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 6K–8K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $3K–$7K
- Returns
- 1.6%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
70% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 4.2% of listings are out of stock. The average listing ranks #63 within Wrenches. It carries 1,278 reviews at 4.71 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 70%
- Prime listings
- 100%
- Out of stock, average day
- 4.2%
- Average rank
- #63in Wrenches
- Average rating
- 4.71 starsAmazon United States average 4.42 stars
- Average reviews
- 1,278per listing
- Listings tracked
- 20
04 · Newcomers
Amazon counts 0 of last year's 1 launches as successful.
1 products launched here in the last 12 months. Amazon counts 0 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 59 months on average, so the names here are settling in.
- Launched, last 12 months
- 1
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 59 months
Products
Top 21mm Wrench 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
FLZOSPER 21mm Metric Wrench 12-Point Box End Head Combination Wrench Spanner
- Price
- $6.91
- Rating
- 4.8/5
- Reviews
- 620
- Age
- 3y ago

Egofine 21mm Ratcheting Combination Wrench Metric Industrial Grade Gear Spanner with 12-Point Design 72-Tooth Ratchet Chrome Vanadium Steel
- Price
- $9.93
- Rating
- 4.5/5
- Reviews
- 53
- Age
- 4y ago

DURATECH 21mm Combination Wrench Metric
- Price
- $9.73
- Rating
- 4.6/5
- Reviews
- 68
- Age
- 2y ago

SORAKO 21mm Ratcheting Combination Wrench Chrome Vanadium Steel Gear Wrench Industrial Grade Cr-V Steel Gear Spanner Household Garage Tools(Metric)
- Price
- $6.94
- Rating
- 4.6/5
- Reviews
- 95
- Age
- 2y ago

TEKTON 21 mm Combination Wrench | 18292
- Price
- $11.35
- Rating
- 4.8/5
- Reviews
- 5,844
- Age
- 11y ago
Trending
90-day click momentum
GEARWRENCH GearBox 12 Pt. XL Flex Head Double Box Ratcheting Wrench 21mm - 86021 Black
- Price
- $41.02
- Rating
- 4.7/5
- Reviews
- 705
- Age
- 9y ago

SORAKO 21mm Ratcheting Combination Wrench Chrome Vanadium Steel Gear Wrench Industrial Grade Cr-V Steel Gear Spanner Household Garage Tools(Metric)
- Price
- $6.94
- Rating
- 4.6/5
- Reviews
- 95
- Age
- 2y ago

DURATECH 21mm Extra Long Ratcheting Wrench Double Box End
- Price
- $19.12
- Rating
- 4.8/5
- Reviews
- 264
- Age
- 10mo ago

Hordion 21mm Metric Combination Wrench Spanner with Box End and Open End
- Price
- $6.17
- Rating
- 4.7/5
- Reviews
- 60
- Age
- 1y ago

COYAGRIP 21mm Wrench Industrial Grade Spanner Combination Wrenches Metric with 12-Point Box End 15-Degree Offset 21mm Wrenches Chrome Vanadium Steel Mirror Polished
- Price
- $9.48
- Rating
- 4.7/5
- Reviews
- 260
- Age
- 1y ago
Newest
by launch date
DURATECH 21mm Extra Long Ratcheting Wrench Double Box End
- Price
- $19.12
- Rating
- 4.8/5
- Reviews
- 264
- Age
- 10mo ago

COYAGRIP 21mm Wrench Industrial Grade Spanner Combination Wrenches Metric with 12-Point Box End 15-Degree Offset 21mm Wrenches Chrome Vanadium Steel Mirror Polished
- Price
- $9.48
- Rating
- 4.7/5
- Reviews
- 260
- Age
- 1y ago

Egofine 21mm Ratchet Wrench Flex Head Ratcheting Combination Wrench Metric Industrial Grade Gear Spanner with 12 Point Box End 72-Teeth Ratchet Chrome Vanadium Steel
- Price
- $13.78
- Rating
- 4.7/5
- Reviews
- 691
- Age
- 1y ago

Hordion 21mm Metric Combination Wrench Spanner with Box End and Open End
- Price
- $6.17
- Rating
- 4.7/5
- Reviews
- 60
- Age
- 1y ago

PHITUODA 21mm Metric Combination Wrench
- Price
- $6.46
- Rating
- 4.7/5
- Reviews
- 64
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take 60% of clicks. Leaders hold, but buyers still shop past them.
Brands
17 falling
Sellers
38
Top-5 brand share
67%
Top 20: 100%
Top-5 click share
60%
Top 20: 100%
Open market
28%
- FLZOSPER20%
- DURATECH17%
- Egofine14%
- SORAKO10%
- TEKTON7%
- TOOLGUARDS5%
Demand
21mm Wrench search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.6×
Reviews and returns
What reviews say buyers love and hate about 21mm Wrench
We read the reviews and the return reasons for every product selling here.
“Not a quality tool”
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 21mm Wrench questions
Answered from the same tracked data.









