9 inch angle grinder
Skip itA small market ($25K/yr) — this niche doesn't clear our bar today.
Review moat
Incredible57.06avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Returns
Good2.5%return rate — above 5% kills the launch gate
Avg price
Okay$184.37avg listing price — sweet spot $15–$100
Competition
Okay63%top-5 click share — leaders hold, buyers still browse
Brand share
Okay87%top-5 brand share — brands hold most of the demand
Growth
Bad-5.8%90-day search growth — must beat 0% to launch
Price range
Bad$57.50–$311.38cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Bad1.1%search→purchase rate — share of searches ending in a sale
Market size
Bad$25K$25K/yr · 13K searches
According to Flapen's Amazon United States niche tracking, 9 inch angle grinder is a $25K/yr Amazon United States market (13K searches/yr). The top 5 brands hold 87% of demand. Verdict: Skip it — 37/100.
Data updated Jul 30, 2026 · scored weekly · How we score niches
9 inch angle grinder market data
- Units sold / yr
- 250–500
- avg 0–100/product
- Revenue / yr
- $46K–$92K
- units × avg price
- Conversion rate
- 1.1%
- Avg BSR
- #452
- Page quality
- 0%
- Prime
- 94%
- Sponsored
- 50%
- Out of stock
- 13.1%
- Avg brand age
- 62 months
- Avg seller age
- 176 days
Competition & brand share
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.Brands
9 flat
Sellers
63
Top-5 brand share
87%
Top 20: 100%
Top-5 click share
63%
Top 20: 100%
Open market
7%
- DEWALT27%
- ProMaker23%
- Hoteche20%
- Makita10%
- Bosch8%
- Metabo HPT6%
- Open — no brand owns it (3 brands, 7%)
Top 9 inch angle grinder search terms
- 9 inch angle grinder5K/yr
- 9 inch grinder4K/yr
- 9 grinder4K/yr
Top 9 inch angle grinder 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 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
PROMAKER Industrial 9 Heavy Duty Angle Grinder - 17.2 High Power Motor 6300 RPM Metal & Concrete Cutter - Rotating Multi-Position Handle Includes 2 Spare Carbon Brushes - 2-Year Protection
ProMaker$77.294.2★63 rev
DEWALT Angle Grinder 9-Inch 6 500 RPM 4.0-HP (DWE4519) Yellow
DEWALT$192.003.7★109 rev
Hoteche 9-Inch Angle Grinder 3.3-HP Heavy-Duty Electric Grinder Fits 7/8 Hole Size Wheels for Metal Cutting Concrete Grinding and Polishing
Hoteche$88.984.4★19 rev
DEWALT Angle Grinder Tool 7-Inch/9-Inch 5.3-Horsepower (D28499X)
DEWALT$228.084.3★363 rev
Makita GA9060 Angle Grinder with No Lock-On Switch 9
Makita$234.764.7★72 rev
Newest
by launch date
Metabo HPT W 24-230 MVT 9-Inch Angle Grinder 6 600 RPM 15 Amp Lock-On Switch 646467420
Metabo HPT$297.2338 rev
BOSCH GWS22-230J 9 Angle Grinder 15-Amp Motor 6 500 RPM for Heavy-Duty Grinding Anti-Vibration Handle Large Angle Grinder for Metalworking (Inc: Cutting Guard Grinding Guard and Handle)
Bosch$247.174 rev
Bosch GWS25-230JR 9 In. Large Angle Grinder 15 Amp
Bosch$266.874 rev
PROMAKER Industrial 9 Heavy Duty Angle Grinder - 17.2 High Power Motor 6300 RPM Metal & Concrete Cutter - Rotating Multi-Position Handle Includes 2 Spare Carbon Brushes - 2-Year Protection
ProMaker$77.2963 rev
Hoteche 1400W Angle Grinder 125mm Grinder with 8000rpm Green Color Box Packaging
Hoteche$68.340 rev
Trending
90-day click momentumMetabo HPT W 24-230 MVT 9-Inch Angle Grinder 6 600 RPM 15 Amp Lock-On Switch 646467420
Metabo HPT$297.234.0★
Bosch GWS25-230JR 9 In. Large Angle Grinder 15 Amp
Bosch$266.874.7★
BOSCH GWS22-230J 9 Angle Grinder 15-Amp Motor 6 500 RPM for Heavy-Duty Grinding Anti-Vibration Handle Large Angle Grinder for Metalworking (Inc: Cutting Guard Grinding Guard and Handle)
Bosch$247.175.0★
Hoteche 1200W Angle Grinder 125mm Grinder with 9000rpm Yellow Color Box Packaging
Hoteche$57.503.0★
PROMAKER Industrial 9 Heavy Duty Angle Grinder - 17.2 High Power Motor 6300 RPM Metal & Concrete Cutter - Rotating Multi-Position Handle Includes 2 Spare Carbon Brushes - 2-Year Protection
ProMaker$77.294.2★
What buyers say about 9 inch angle grinder
What buyers praise and complain about, mined from review topics.What buyers love
“I know it's cheap”
“This is one heavy-duty machine”
“weight this is a great grinder”
“They work as they should”
“Perfect for long term projects and name brand”
“Already worth it if it died now”
“It has easily”
“This is a high quality tool with loads of power to back it up”
“He also really liked the anti-vibration handle”
“This grinder comes complete with everything you need to get started right out of the box. unless you need a specialty blade”
What buyers complain about
“it breaks, spend the money on a product that will last”
“guard will not workwith 9 diamond cutting wheel, bought several guards from several places including dewalt and nothing worked”
“Apparently a previously returned item”
“Do not buy this grinder if you intend on using a type one flat cutting wheel”
“It is not for the weak”
“It is on the heavier side”
“Fire hazard”
“It will pinch your fingers”
“While its costly”
Top return reasons
Common questions
- Is 9 inch angle grinder profitable to sell on Amazon United States?
- The niche generates $25K/yr across 18 tracked products. 3 of 7 products launched in the last 360 days are still selling. 90-day search growth is -5.8%. Flapen's verdict: Skip it (37/100).
- How competitive is the 9 inch angle grinder niche?
- 9 brands and 63 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 87% of demand.
- What do buyers complain about in 9 inch angle grinder?
- Top complaints mined from reviews: Durability, Functionality-Overall, Product Condition. The return rate is 2.5%.
- What does it cost to enter the 9 inch angle grinder niche?
- Listings span $57.50–$311.38; the average listing price is $184.37 (sweet spot $15–$100). The average incumbent carries 57 reviews — the moat a new listing must climb.