four blade serrated eccentric drill bits
Skip itA small market ($13K/yr) — this niche doesn't clear our bar today.
Returns
Great1.5%return rate — above 5% kills the launch gate
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Avg price
Great$16.69avg listing price — sweet spot $15–$100
Growth
Good+45.8%90-day search growth — must beat 0% to launch
Review moat
Good988.53avg incumbent reviews — the moat a new listing must climb
Price range
Good$9.26–$24.71cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Okay2.8%search→purchase rate — share of searches ending in a sale
Brand share
Okay84%top-5 brand share — brands hold most of the demand
Competition
Okay67%top-5 click share — leaders hold, buyers still browse
Market size
Bad$13K$13K/yr · 27K searches
According to Flapen's Amazon United States niche tracking, four blade serrated eccentric drill bits is a $13K/yr Amazon United States market (27K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Jul–Aug–Sep. Verdict: Skip it — 49/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
four blade serrated eccentric drill bits market data
- Units sold / yr
- 1K–2K
- avg 0–100/product
- Revenue / yr
- $21K–$25K
- units × avg price
- Conversion rate
- 2.8%
- Avg BSR
- #102
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 19.2%
- Avg brand age
- 25 months
- Avg seller age
- 162 days
Competition & brand share
The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.Brands
12 falling
Sellers
16
Top-5 brand share
84%
Top 20: 100%
Top-5 click share
67%
Top 20: 100%
Open market
10%
- DKIBBITH22%
- Seuphubs19%
- Honkdtyun17%
- CNPMBO13%
- Generic13%
- OPAHDYGCY5%
- Open — no brand owns it (6 brands, 10%)
Demand & seasonality
Weekly Amazon search volume, last 58 weeks — +45.8% search growth over the last 90 days.Peak months: Jul, Aug, Sep · busiest ÷ quietest = 14.1×
Top four blade serrated eccentric drill bits search terms
- 4 flute drill bit set2K/yr
- 4 flute drill bit3K/yr
- eccentric drill bit set5K/yr
- kotkka drill bits2K/yr
- sawtooth drill bit set2K/yr
- four blade serrated eccentric drill bits6K/yr
- four blade serrated eccentric drill3K/yr
- 4 blade drill bit2K/yr
- 4 blade serrated eccentric drill bit2K/yr
- four-blade serrated eccentric drill676/yr
Top four blade serrated eccentric drill bits 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 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
12-Piece Four Blade Serrated Eccentric Drill Bits (5/32-1/2) High Strength Carbide Masonry Drill Bit Set for Concrete Tile Brick Glass Wood and Plastic
Seuphubs$21.714.0★92 rev
5 Piece Set of Four Flute Drill Bits - High Hardness Eccentric Twist Drill Bits Set for Tile Glass Ceramic Brick Metal Plastic Wood & General Concrete (6/6/8/10/12mm)
CNPMBO$14.003.9★51 rev
DKIBBITH 4-Flute Serrated Masonry Drill Bit Set 11-Piece Black - 3/16 to 1/2 for Concrete Tile Brick Glass Ceramic Wood.
DKIBBITH$19.954.4★2,768 rev
6 Pcs Four-Flute Sawtooth Eccentric Twist Drill Bit Concrete and Masonry Drill Bit Set Set for Concrete/Glass/Tile/Wood/Metal Hexagonal Shank Drills Short bits (4/5/6/8/10/12mm)
Generic$11.024.3★34 rev
Honkdtyun 5 Count Four Edged Serrated Eccentric Drill Bit Set New Four-Flute Sawtooth Eccentric Drill Bit for Stone Glass Concrete Wood Brick Metal (5pack)
Honkdtyun$11.524.0★87 rev
Newest
by launch date
New Four-Flute Sawtooth Eccentric Drill Bit 2025 Upgraded Four Blade Serrated Eccentric Drill High Hardness Skewed Head Drill Set Multifunction Suitable for Stone Glass Concrete (4/5/6/8/10/12mm)
Imgjsx$14.3942 rev
5 Piece Set of Four Flute Drill Bits - High Hardness Eccentric Twist Drill Bits Set for Tile Glass Ceramic Brick Metal Plastic Wood & General Concrete (6/6/8/10/12mm)
CNPMBO$14.0051 rev
6-Piece 4-Flute Serrated Eccentric Drill Bit Set Carbide Hex Shank
OPAHDYGCY$14.561 rev
Mgtgbao 10PC Black 1/4 Upgraded 4-Flute Serrated Carbide Masonry Drill Bit Set 6mm Serrated Concrete Drill Bit for Plastic Glass Brick Cement Tile Marble Wood.
Mgtgbao$18.6294 rev
LITDDDW 10pcs Masonry Drill Bit Set Concrete Drill Bit Set Four Blade Serrated Eccentric Carbide Drill Bits for Brick/Plastic/Ceramics/Tile/Wood/Marble 3/16-1/2
LITDDDW$21.93126 rev
Trending
90-day click momentum6-Piece 4-Flute Serrated Eccentric Drill Bit Set Carbide Hex Shank
OPAHDYGCY$14.565.0★
Mgtgbao 10PC Black 1/4 Upgraded 4-Flute Serrated Carbide Masonry Drill Bit Set 6mm Serrated Concrete Drill Bit for Plastic Glass Brick Cement Tile Marble Wood.
Mgtgbao$18.624.3★
DKIBBITH 4-Flute Serrated Masonry Drill Bit Set 11-Piece Black - 3/16 to 1/2 for Concrete Tile Brick Glass Ceramic Wood.
DKIBBITH$19.954.4★
5 Piece Set of Four Flute Drill Bits - High Hardness Eccentric Twist Drill Bits Set for Tile Glass Ceramic Brick Metal Plastic Wood & General Concrete (6/6/8/10/12mm)
CNPMBO$14.003.9★
BGTEC Four Blade Serrated Masonry Drill Bit Set 10PCS Tile Drill Bits
BGTEC$24.714.7★
What buyers say about four blade serrated eccentric drill bits
What buyers praise and complain about, mined from review topics.What buyers love
“Great quality for the price and a useful set for DIY projects, repairs, and home improvements”
“Excellent price”
“As advertised”
“The bits cut cleanly, are durable, and fit my drill securely”
“Durable construction that holds up well under use”
“Great size”
“Heavy duty”
“Easy to use”
“The bits are sharp”
“Good for concrete”
What buyers complain about
“Poor Quality”
“they are not durable”
“Not as advertised”
“This bit was way hard to cut through metal”
“So not sturdy or for long usage if you are drilling into concrete”
“Cheap price only good for one to two uses per drill bit”
“frustrating when used on ceramic”
“Not even correct sizes”
“It doesnt work try to use it on tile couldnt get through at all”
“wasnt even warm”
Top return reasons
Common questions
- Is four blade serrated eccentric drill bits profitable to sell on Amazon United States?
- The niche generates $13K/yr across 15 tracked products. 1 of 7 products launched in the last 360 days are still selling. 90-day search growth is +45.8%. Flapen's verdict: Skip it (49/100).
- How competitive is the four blade serrated eccentric drill bits niche?
- 12 brands and 16 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 84% of demand.
- What do buyers complain about in four blade serrated eccentric drill bits?
- Top complaints mined from reviews: Quality-Overall, Durability, Advertised Vs Actual Product. The return rate is 1.5%.
- When does demand for four blade serrated eccentric drill bits peak?
- Demand peaks in Jul–Aug–Sep; the busiest month runs 14.1× the quietest.
- What does it cost to enter the four blade serrated eccentric drill bits niche?
- Listings span $9.26–$24.71; the average listing price is $16.69 (sweet spot $15–$100). The average incumbent carries 989 reviews — the moat a new listing must climb.