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Aleric Step Drill Bit Set - Titanium Coated, High Speed Steel Drill Cone Bits for Aluminum, Wood and Plastic Hole Drilling Cutting, Multi Size Hole Stepped Up Unibit for DIY Lovers,3pcs

  • Based on 1,443 reviews
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Availability: Only 10 left in stock, order soon!
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Arrives Saturday, Jul 11
Order within 23 hours and 56 minutes
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Features

  • QUILITY STEP DRILL BITS The step drill bits are made of classic high speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, wood board, copper ect.
  • DOUBLE CUTTING BLADES DESIGNThe high speed steel step drill bit set is designed with double cutting blades, which provides faster, smoother and accurate drilling.
  • TRI-FLATTED SHANK Each unibit step drill bit optimally fits into power tools such as impact drill chucks securely and eliminates slip for higher efficiency of output.
  • WELL PERFORMED The multiple hole drill bit set include 28 size, which can cuts through aluminum , wood board and other surfaces creating relatively clean holes as you drill. Suitable for home DIY, and general building/ engineering use.t slippage and shedding during the rotation.
  • SET INCLUDESThe cone drill bits set includes 3 common sizes for versatility. Bit #1 (6 steps): 3/16", 1/4", 5/16", 3/8", 7/16", 1/2"; Bit #2 (13 steps): 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2"; Bit #3 (9 steps): 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4". If you are not fully satisfied with the step bit for any reason, please contact us for 100% refund or replacement.

Material: Stainless Steel


Cutting Diameter: 0.5 Inches


Finish Type: Titanium


Shank Type: 3-Flat


Cutting Angle String: 135 Degrees


Brand Name: Aleric


Model: AMY-07


UPC: 719007673253


Set Name: 28 Size Step Drill Bit Set


Unit Count: 3.0 Count


Manufacturer: Aimeiyat


Part Number: AMY-07


Number of Pieces: 3


Cutting Diameter: 0.5 Inches


Minimum Bore Diameter: 0.13 Inches


Material Type: Stainless Steel


Finish Types: Titanium


Shank Type: 3-Flat


Surface Recommendation: Aluminum,Copper,Metal,Plastic,Stainless Steel,Steel,Wood


Cutting Angle String: 135 Degrees


Tool Flute Type: Spiral


Point Style: Split Point


Number of Flutes: 2


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jul 11

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

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • They worked fine for me
I am using these drill bits to make holes in plastic hobby boxes. In this application they work just fine. I am not sure how well they work in other applications but they appear to be well made.
Reviewed in the United States on January 26, 2026 by Logan 2729

  • Vale la pena comprar
Excelente
Reviewed in the United States on June 9, 2026 by netsybe

  • Disappointed
These are the worst bits I have ever had the displeasure of using. I purchased the set to drill a 3/4 inch hole through a 5/16 metal plate. I had already pre drilled the hole to 1/2 inch but I didn’t have a bit any larger so I ordered this set. Great , the bits arrived, I can finish the job. Wrong. Took the 3/4 sized unibit with my cutting oil, drilled up one size to 5/8 and the bit quit cutting. You can only imagine how upset I was. Warning, Please don’t buy this product. ... show more
Reviewed in the United States on May 8, 2026 by Thomas W Johnson

  • Great for plastic and soft metals
For the price its a great set. Great for thin soft metals and plastics. I use them mainly for plastics. Easy to use although one of them has a wierd cut to the hex shank that doesnt allow it to be put into an impact but a drill with an adjustable chuck, your golden.
Reviewed in the United States on November 22, 2025 by jesse

  • Puntas brocas
Sirve para trabajos sencillos . Para trabajos exigentes no funcionará .
Reviewed in the United States on June 14, 2026 by Niover florez

  • Nice
Good bit set
Reviewed in the United States on May 25, 2026 by William Russell

  • No the best ones
Not the best one. Is hard to make the job done. Sometimes need to start with regular and final touches with this ones.
Reviewed in the United States on May 4, 2026 by José O. Lugo

  • Good Set of Step Drill Bits Good Set of Step Drill Bits
Step drill cone bits were ordered to increase drill holes without splitting or damaging holes in wooden crafts I make. I made a bell ringer stand without screws, nails or glue and needed to slightly increase drilled holes for dowel wedge. Attached photos show before in raw wood and after black staining. Step drill cone bit works faster than my hand rasp filing in holes. ... show more
Reviewed in the United States on April 12, 2026 Reviewed in the United States on April 12, 2026 by jarvad.

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