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TCBWFY

TCBWFY Auger Drill Bit for 3.5"x16", Extended Length Garden Spiral Drill Bit for Bulbs and Flowers, Post Hole Digger for 3/8"Hex

  • Based on 2,392 reviews
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$16.19 Why this price?
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Size: 3.5"x16"


Features

  • Build to last: Made of heavy duty steel, with glossy black painted finish. The auger drill bit point on it hits the ground first and keeps it steady when you are digging hard grounds. Our patented design also makes the distance between the digging blade start and the point is the minimal, so auger drill bit will start working on hard ground without having to push down.
  • Size: 0.3 inch (8mm) steel shaft with non-slip hex drive 0.3inch(8mm); 3.5inch (9cm) diameter x 16-inch (40cm) length.Quickly digs holes up to 16 inches deep and 3.5 inches wide using the power of your hand held drill.
  • Save your time & Easy to use: our earth drill bit will work with any 3/8" or larger chucked drill, 18V or greater drill recommended. Plant hundreds or just a few bulbs in minutes.For cordless drills a minimum 14V drill is recommended; Keep auger clean from soil and debris when not in use.
  • Improve your work efficiency: Our bedding plants drill bit will make hundreds of holes in few minutes, it will save your time & save yor back. A Life Saver for you!

Material: Alloy Steel


Cutting Diameter: 3.5 Inches


Finish Type: black painted


Shank Type: Hex


Brand: TCBWFY


Material: ‎Alloy Steel


Cutting Diameter: ‎3.5 Inches


Finish Type: ‎black painted


Shank Type: ‎Hex


Brand: ‎TCBWFY


Tool Flute Type: ‎Spiral


Point Style: ‎Guide Point


Surface Recommendation: ‎Alloy Steel


Number of Flutes: ‎1


Set Name: ‎3.5"x16" Auger Drill Bit Set


Unit Count: ‎1 Count


Manufacturer: ‎TCBWFY


Number of Pieces: ‎1


Package Dimensions: ‎16.81 x 3.78 x 3.74 inches


Item Weight: ‎1.7 pounds


Item model number: ‎TY-030003-7


Date First Available: ‎March 25, 2020


Frequently asked questions

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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews

    • Very good quality
Size: 1.2"x24"
This auger bit works perfect very strong and did a great job. Creating pilot holes for my tea posts in heavy clay soil. We’ll buy again.
Reviewed in the United States on February 12, 2026 by buck
    • Handy tool
Size: 1.6"x16.5"
This power attachment is a time saver and works well. It turns the soil and makes a hole large enough and deep enough to place the plant in the ground
Reviewed in the United States on January 14, 2026 by Whend
    • Fast and simple
Size: 3"x24"
Made planting very easy. Very easy to control the depth of the hole. I plant 50 new bulbs in no time.
Reviewed in the United States on October 16, 2025 by BB
    • Perfect
Size: 1.6"x16.5"
Works great. Very sturdy and strong.
Reviewed in the United States on January 14, 2026 by Bobby S
    • Lava rock beds assistance
Size: 1.6"x16.5"+3.5"x16"
Works well loosing up dirt filled beds of lava rocks and easy to clean.
Reviewed in the United States on February 13, 2026 by eric cordero
    • Makes Bulk Planting Much Easier
Size: 1.6"x16.5"
This auger drill bit is sturdy, well-made, and fit perfectly into my drill. It cut clean holes with very little effort and didn’t bind up in the soil. Planting bulbs went so much faster and saved my hands and back compared to digging by hand.
Reviewed in the United States on December 28, 2025 by Blondie16
    • Great for trappers
Size: 1.6"x16.5"
Bought this for my trap lines. Great for hole sets, quick and easy drilling in hard or soft ground. Good quality, sharp enough to bite hard clay.
Reviewed in the United States on January 21, 2026 by Sayer Lane
    • Loose soil this may work
Size: 1.6"x16.5"
Doesn’t work for South Louisiana wet mud. Had it on 18v lithium makita drill and it would bore down throw chunks of mud and then get stuck and I’d have to reverse and get it out. It would make hole but not big enough for tulip bulbs I had and I wouldn’t have any dirt to cover with. I ended up using shovel to plant 300 bulbs. I’m giving it 3 stars cause I think it would work in some loose soil. ... show more
Reviewed in the United States on February 10, 2026 by Christopher keane

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