spline socket set
Skip itA small market ($52K/yr) — this niche doesn't clear our bar today.
Returns
Great1.5%return rate — above 5% kills the launch gate
Conversion
Great7.5%search→purchase rate — share of searches ending in a sale
Brand share
Good71%top-5 brand share — brands hold most of the demand
Avg price
Good£12.70avg listing price — sweet spot $15–$100
Price range
Okay£7.43–£22.35cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Okay3,061.06avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Competition
Okay70%top-5 click share — leaders hold, buyers still browse
Growth
Bad-20.7%90-day search growth — must beat 0% to launch
Market size
Bad£52K£52K/yr · 54K searches
According to Flapen's Amazon United Kingdom niche tracking, spline socket set is a £52K/yr Amazon United Kingdom market (54K searches/yr). The top 5 brands hold 71% of demand. Verdict: Skip it — 40/100.
Data updated Jul 22, 2026 · scored weekly · How we score niches
spline socket set market data
- Units sold / yr
- 3K–4K
- avg 100–250/product
- Revenue / yr
- £38K–£51K
- units × avg price
- Conversion rate
- 7.5%
- Avg BSR
- #330
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 82%
- Out of stock
- 4.3%
- Avg brand age
- 55 months
- Avg seller age
- 196 days
Competition & brand share
The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.Brands
16 falling
Sellers
44
Top-5 brand share
71%
Top 20: 100%
Top-5 click share
70%
Top 20: 100%
Open market
22%
- US PRO INDUSTRIAL23%
- LEXIVON17%
- DAYUAN12%
- Anesty10%
- Qnkaa9%
- Bergen8%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -20.7% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.6×
Top spline socket set search terms
- spline socket set27K/yr
- spline bit set10K/yr
- multi spline socket set7K/yr
- triple square socket set6K/yr
- xzn socket set5K/yr
Top spline socket set 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 17 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
US PRO Industrial 9PC 3/8 DR Impact Spline Bit Sockets Set 4-14mm 3932
US PRO INDUSTRIAL£8.584.7★91 rev
LEXIVON XZN Triple Square Spline Bit Socket Set Size M4 M5 M6 M8 M10 M12 M14 M16 M18 | Allen Key Socket Multiple Teeth 10 Pcs Set for Torque Wrench Ratchet Wrench Impact Power Drills (LX-145)
LEXIVON£17.264.7★45,673 rev
DAYUAN Spline Socket Bit Set 10pcs Square Triple Silver M4 - M18
DAYUAN£10.155.0★33 rev
Spline Bit Socket Set 10pcs 1/4 3/8 & 1/2 Drive Triple Square Bits XZN Spline Sockets M4 - M18 S2 Steel and Chrome Vanadium Steel Made
Anesty£10.714.6★148 rev
Qnkaa Spline Socket Bit Set 10pcs Square Triple Silver M4 - M18
Qnkaa£10.944.7★1,278 rev
Newest
by launch date
Aurlloct 1/2 Impact XZN Bit Socket 10Pcs Impact Triple Square Spline Socket Set M5 - M18 Triple Square Bit Set for Auto Repair Industrial Assembly Equipment Maintenance and DIY Enthusiasts Alike
Aurlloct£17.5465 rev
WinHolder 3/8 Drive Impact Hex Torx Spline Bit Socket Short Reach Allen Star Hand Tool Kit (9PCS Impact Spline Bit Sockets Set)
WinHolder£10.5239 rev
QWORK 21pc 1/2 Cr-V Spline Socket Set 8-36mm 12 Point Socket Set
QWORK£22.35120 rev
VORXEON 1/2 Drive Impact Spline Bit Socket Set 8PCS M5-M18 S2 Steel Impact Triple Square Spline Bit Socket Set with Storage Case for Car Engine Repair Auto Mechanic and German Vehicle Maintenance
VORXEON£13.8223 rev
Awang XZN Triple Square Spline Bit Socket Set M4-M18 Socket Set
Awang£12.3171 rev
Trending
90-day click momentumVORXEON 1/2 Drive Impact Spline Bit Socket Set 8PCS M5-M18 S2 Steel Impact Triple Square Spline Bit Socket Set with Storage Case for Car Engine Repair Auto Mechanic and German Vehicle Maintenance
VORXEON£13.824.2★
DAYUAN Spline Socket Bit Set 10pcs Square Triple Silver M4 - M18
DAYUAN£10.155.0★
QWORK 21pc 1/2 Cr-V Spline Socket Set 8-36mm 12 Point Socket Set
QWORK£22.354.6★
LEXIVON XZN Triple Square Spline Bit Socket Set Size M4 M5 M6 M8 M10 M12 M14 M16 M18 | Allen Key Socket Multiple Teeth 10 Pcs Set for Torque Wrench Ratchet Wrench Impact Power Drills (LX-145)
LEXIVON£17.264.7★
US PRO 5 Piece 1/2 Drive Spline Triple Square Bit Sockets M10 - M18 2076
US PRO£7.954.6★
What buyers say about spline socket set
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality”
“Great value”
“Quality socket set with very prompt delivery”
“As advertised”
“perfect fit”
“Strong, perfect fit”
“Well presented”
“The items look strong and durable”
“Excellent spline set with stands as much pressure applied as needed”
“Works perfectly”
What buyers complain about
“I would say that the quality of these splined bits is mixed”
“Very loose”
“Waste of money”
“Corroded spline bits”
“Not great, the socket split with not much force”
“It split the forst time used it”
Top return reasons
Common questions
- Is spline socket set profitable to sell on Amazon United Kingdom?
- The niche generates £52K/yr across 17 tracked products. 90-day search growth is -20.7%. Flapen's verdict: Skip it (40/100).
- How competitive is the spline socket set niche?
- 16 brands and 44 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 71% of demand.
- What do buyers complain about in spline socket set?
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Value For Money. The return rate is 1.5%.
- When does demand for spline socket set peak?
- Demand is steady year-round — the busiest month runs 1.6× the quietest.
- What does it cost to enter the spline socket set niche?
- Listings span £7.43–£22.35; the average listing price is £12.70 (sweet spot $15–$100). The average incumbent carries 3,061 reviews — the moat a new listing must climb.