4 inch auger bit
Worth a lookShows a sweet-spot price point ($29.82 avg), but a small market ($25K/yr) keeps it on the watch list.
Avg price
Incredible$29.82avg listing price — sweet spot $15–$100
Price range
Great$11.23–$113.49cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.2%return rate — above 5% kills the launch gate
Brand share
Good65%top-5 brand share — brands hold most of the demand
Conversion
Good5.0%search→purchase rate — share of searches ending in a sale
Growth
Good+25.8%90-day search growth — must beat 0% to launch
Competition
Good53%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Okay3,002.69avg incumbent reviews — the moat a new listing must climb
Market size
Bad$25K$25K/yr · 17K searches
According to Flapen's Amazon United States niche tracking, 4 inch auger bit is a $25K/yr Amazon United States market (17K searches/yr). The top 5 brands hold 65% of demand. Verdict: Worth a look — 52/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
4 inch auger bit market data
- Units sold / yr
- 1K–1K
- avg 0–100/product
- Revenue / yr
- $30K–$37K
- units × avg price
- Conversion rate
- 5.0%
- Avg BSR
- #37
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 88%
- Out of stock
- 8.1%
- Avg brand age
- 49 months
- Avg seller age
- 209 days
Competition & brand share
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.Brands
20 rising
Sellers
27
Top-5 brand share
65%
Top 20: 100%
Top-5 click share
53%
Top 20: 94%
Open market
28%
- SYITCUN14%
- XtremepowerUS14%
- K-Brands14%
- TCBWFY13%
- SELEWARE10%
- Ytmshisan7%
Demand
Weekly Amazon search volume, last 8 weeks — +25.8% search growth over the last 90 days.Top 4 inch auger bit search terms
- 4 inch auger bit6K/yr
- 4 auger drill bit for dirt5K/yr
- 4 inch auger bit for drill3K/yr
- 4 inch auger3K/yr
Top 4 inch auger bit 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
XtremepowerUS 4 Inch Auger Digging Bit for Post Holes Replacement Earth Digger Planting Drill Fence Hole Maker Grass Plant Hole Fit for 3/4 Shaft
XtremepowerUS$31.184.6★174 rev
K-Brands Auger Drill Bit for Planting 4 x 12 Inch - Garden Spiral Hole Drill Planter for Bulb Planting Bedding Plants Umbrella Holes - 3/8 Inch Hex Drive Drill
K-Brands$17.884.5★7,066 rev
SELEWARE Auger Drill Bit for Planting - 4x 32 Heavy-Duty Garden Auger Drill Bit Fits 3/8 Hex Drive Drill - Bulb Planter Tool Auger Post Hole Digger for Bulbs Flowers Fence Posts
SELEWARE$34.404.4★125 rev
SYITCUN Auger Drill Bit for Planting - 4X24 Heavy-Duty Auger Post Hole Digger for Fence- 1/2 Hex Drive Drill
SYITCUN$30.954.4★2,552 rev
4x24 Auger Drill Bit for Planting Heavy Duty Garden Auger Post Hole Digger with Spiral Double Blade & 3/8 Hex Drive for Fast Hole Drilling
Ytmshisan$28.964.3★75 rev
Newest
by launch date
Upgraded Auger Drill Bit for Planting 4 X 32 Garden Drill Augers for Digging Holes Post Hole Auger for Bulbs Flower Fence Posts Earth Auger Bit for Cordless and Corded Drill - Fit 3/8 Hex Drive
BeneLabel$34.06362 rev
Sproot Garden Auger Drill Bit for Planting 4 x 12 Inch - Umbrellas and Fences Auger Post Hole Digger for Gardening and Spiral Bulb Planter Tool 3/8 Inch Hex Drive Compatible
Sproot$14.56505 rev
SYITCUN Auger Drill Bit for Planting - 4X24 Heavy-Duty Auger Post Hole Digger for Fence- 1/2 Hex Drive Drill
SYITCUN$30.952,552 rev
Tegarbed Auger Drill Bit for Planting 4 Pack Auger Drill Bit Suitable for 3/8 Hex Drill Driver Garden Spiral Hole and Planter for Bulbs Fence Posts and Umbrella Holes
Tegarbed$23.2898 rev
Double Spiral Earth Auger Bit 4 x 36 Post Hole Digger with 7/8 Drive Drill
Garden Trax$61.1169 rev
Trending
90-day click momentumSproot Garden Auger Drill Bit for Planting 4 x 12 Inch - Umbrellas and Fences Auger Post Hole Digger for Gardening and Spiral Bulb Planter Tool 3/8 Inch Hex Drive Compatible
Sproot$14.564.5★
Auger Drill Bit for Planting Heavy-Duty Garden Auger Spiral Drill Bit with Dual Sharp Blades Bulb Planter Tool & Plant Hole Digger Planting Auger for Cordless Drill Tulip Planter Bit 4x32
TCBWFY$37.324.4★
Tegarbed Auger Drill Bit for Planting 4 Pack Auger Drill Bit Suitable for 3/8 Hex Drill Driver Garden Spiral Hole and Planter for Bulbs Fence Posts and Umbrella Holes
Tegarbed$23.284.7★
SYITCUN Auger Drill Bit for Planting - 4X24 Heavy-Duty Auger Post Hole Digger for Fence- 1/2 Hex Drive Drill
SYITCUN$30.954.4★
SYITCUN Auger Drill Bit for Planting - 4X12 Heavy-Duty Garden Auger Spiral Drill Bit - Bulb Planter Tool & Post Hole Digger - 3/8 Hex Drive Drill
SYITCUN$16.124.4★
What buyers say about 4 inch auger bit
What buyers praise and complain about, mined from review topics.What buyers love
“Works fast and well”
“Works as advertised”
“The build quality is impressive”
“Great value”
“Heavy duty”
“Quality and durable”
“good size”
“Heavy duty excellent cutting job for our garden”
“Heavy duty”
“Works great as directed”
What buyers complain about
“Broke instantly”
“Way too loose”
“did not work good at all”
“Awful quality”
“The advertised pictures were misleading”
“Poor reinforcement”
“it just bounces off rather than throws you or tries to yank the drill out of your hands”
“It did burn my drill”
“It is a bit heftier than I expected”
“no instructions”
Top return reasons
Common questions
- Is 4 inch auger bit profitable to sell on Amazon United States?
- The niche generates $25K/yr across 26 tracked products. 5 of 6 products launched in the last 360 days are still selling. 90-day search growth is +25.8%. Flapen's verdict: Worth a look (52/100).
- How competitive is the 4 inch auger bit niche?
- 20 brands and 27 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 65% of demand.
- What do buyers complain about in 4 inch auger bit?
- Top complaints mined from reviews: Durability, Size-Overall, Functionality-Overall. The return rate is 2.2%.
- What does it cost to enter the 4 inch auger bit niche?
- Listings span $11.23–$113.49; the average listing price is $29.82 (sweet spot $15–$100). The average incumbent carries 3,003 reviews — the moat a new listing must climb.