21mm Impact Socket
prices mostly outside the sweet spot ($4.32–$16.07) — 21mm Impact Socket doesn't clear our bar today.
Flapen Score
Is 21mm Impact Socket profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, 21mm Impact Socket is a £56K/yr Amazon United Kingdom market (48K searches/yr). The top 5 brands hold 81% of demand. Demand peaks in Feb. Verdict: Skip it — 43/100.
21mm Impact Socket: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -17.6% over the last 90 days and 16.5% of searches end in a purchase.
£56K
revenue / yr
Who owns the niche?
The top 5 brands hold 81% of demand, so 19% of the market is open.
19%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.
0/100
page quality · 22 products
Top 21mm Impact Socket products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Makita 134833-2 Impact Socket
- Price
- £6.75
- Rating
- 4.6/5
- Reviews
- 1,989
- Age
- 12y ago
US PRO Single 1/2 DR 21MM 6PT Deep Impact Socket 1367
- Price
- £4.75
- Rating
- 4.8/5
- Reviews
- 82
- Age
- 8y ago
Mr.wintek 21mm Scaffolding Impact Socket 1/2 Drive with Retaining Pin & O-Ring 12 Point Design CR-MO Steel for Scaffolding Coupler Pipe Clamps High-Torque Applications Automotive Repair
- Price
- £10.11
- Rating
- 4.4/5
- Reviews
- 25
- Age
- 11mo ago
Mr.wintek 21mm Scaffolding Impact Socket 1/2 Drive with Retaining Pin & O-Ring 6 Point Design and 52mm Length Socket Cr-Mo Steel for Scaffolding Coupler and Pipe Clamps
- Price
- £9.68
- Rating
- 4.6/5
- Reviews
- 21
- Age
- 1y ago
Kielder KWT-125-PO 1/2 Mid-Size 21mm Scaffolding Impact Socket (52mm Long) with Pin & O-Ring
- Price
- £5.49
- Rating
- 4.2/5
- Reviews
- 165
- Age
- 6y ago
Trending
90-day click momentum
Tightspot 1/2 Inch Drive 21 mm Deep Impact Socket with Anti Rounding 6 Point Design Heat Treated CRV Steel
- Price
- £7.23
- Rating
- 4.8/5
- Reviews
- 511
- Age
- 1y ago
Youzzei 1/2 Inch 21mm Impact Socket 6 Point Shallow Metric Socket Upgraded Electrophoretic Coating CR-V Steel 21mm Sockets 1/2 Drive for Car Repair Mechanical Maintenance Home Use
- Price
- £5.34
- Rating
- 4.8/5
- Reviews
- 12
- Age
- 7mo ago
Youzzei 21mm 1/2 Inch Square Drive Socket 6 Point Metric Socket Polishing Chrom Vanadium Alloy Steel 21mm Sockets 1/2 Drive for Car Repair Mechanical Maintenance Home Use
- Price
- £5.26
- Rating
- 4.3/5
- Reviews
- 26
- Age
- 8mo ago
Mr.wintek 21mm Scaffolding Impact Socket 1/2 Drive with Retaining Pin & O-Ring 12 Point Design CR-MO Steel for Scaffolding Coupler Pipe Clamps High-Torque Applications Automotive Repair
- Price
- £10.11
- Rating
- 4.4/5
- Reviews
- 25
- Age
- 11mo ago
2-Pack 21mm Scaffolding Impact Socket Set 1/2 Drive 53mm Deep Metric Impact Socket Heavy Duty CR-MO Steel Deep Metric Socket with Retaining Pin & O-Ring Perfect for Scaffold Clamps Long Bolts
- Price
- £9.32
- Rating
- 4.3/5
- Reviews
- 9
- Age
- 8mo ago
Newest
by launch dateYouzzei 1/2 Inch 21mm Impact Socket 6 Point Shallow Metric Socket Upgraded Electrophoretic Coating CR-V Steel 21mm Sockets 1/2 Drive for Car Repair Mechanical Maintenance Home Use
- Price
- £5.34
- Rating
- 4.8/5
- Reviews
- 12
- Age
- 7mo ago
2-Pack 21mm Scaffolding Impact Socket Set 1/2 Drive 53mm Deep Metric Impact Socket Heavy Duty CR-MO Steel Deep Metric Socket with Retaining Pin & O-Ring Perfect for Scaffold Clamps Long Bolts
- Price
- £9.32
- Rating
- 4.3/5
- Reviews
- 9
- Age
- 8mo ago
Youzzei 21mm 1/2 Inch Square Drive Socket 6 Point Metric Socket Polishing Chrom Vanadium Alloy Steel 21mm Sockets 1/2 Drive for Car Repair Mechanical Maintenance Home Use
- Price
- £5.26
- Rating
- 4.3/5
- Reviews
- 26
- Age
- 8mo ago
Youzzei 21mm 1/2 Inch Square Drive Socket 12 Point Metric Socket Polishing Chrom Vanadium Alloy Steel 21mm Sockets 1/2 Drive for Car Repair Mechanical Maintenance Home Use
- Price
- £5.14
- Rating
- 4.6/5
- Reviews
- 15
- Age
- 8mo ago
Othmro 21mm Scaffolding Impact Sockets 1/2 Square Drive 78mm Length Deep Scaffolders Drive CR-MO Chrome Vanadium Steel Drive with Retaining Pin + O-Ring for Long Bolts and Scaffolding Clamps
- Price
- £7.34
- Rating
- 4.7/5
- Reviews
- 26
- Age
- 11mo ago
Competition: brands, sellers & click share
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.
Brands
13 falling
Sellers
50
Top-5 brand share
81%
Top 20: 100%
Top-5 click share
64%
Top 20: 98%
Open market
13%
- Makita26%
- US PRO20%
- Mr.wintek17%
- Draper10%
- Kielder8%
- Youzzei6%
- Open — no brand owns it (7 brands, 13%)
21mm Impact Socket demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Feb · busiest ÷ quietest = 2.2×
Top 21mm Impact Socket search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- 21mm impact socket19K/yr
- 21mm socket11K/yr
- makita 21mm impact socket scaffolding3K/yr
- makita socket 21mm3K/yr
- makita 21mm impact socket5K/yr
- 21mm socket 1/2 drive3K/yr
- 21 mm impact socket3K/yr
What reviews say buyers love and hate about 21mm Impact Socket
What buyers mention most, as a share of all reviews.
What buyers love
84% of reviews“Good socket”
“Good Quality”
“Great value for money”
“Perfect, sturdy”
“Item as described”
What buyers complain about
54% of reviews“Shocking false advertising”
“Ive tried to break it but without success”
“Too short”
“not the best ones I have used”
“no cleaned afterwards”
21mm Impact Socket return rate & reasons
Why buyers send it back, as a share of all return requests.
0.3%
Return rate
76%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common 21mm Impact Socket questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.
