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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

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Availability: Only 10 left in stock, order soon!
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Arrives Wednesday, Aug 26
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Size: 0.5 inches


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.

Description

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". Our step drill bit set includes 3pcs individual drill bits, 28 Size. 1/8"- 1/2", 3/16"- 1/2", 1/4"- 3/4". Split point tip design provides faster and smoother cutting, increase the wear resistance. HSS along with titanium coating ensures the stepped drill bits stay sharp for years, perfect to drill holes on plastic, wood, sheet metal, steel and other surfaces, Suitable for home DIY lovers. Two Flute Design also lets the material particles escape easily for a much more clean drilling operation. Industry grade High Speed Steel with titanium coating can reduce friction and run cooler, which ensures wear-resistance and durability. Each unibit step drill bit optimally fits into power tools such as impact drill chucks securely and eliminates slip for higher efficiency of output. with the cone drill bit, you may easily drill different kinds of holes on sheet metal, aluminum sheets, wood chips, plastic and wood board. It’s a perfect choice for DIY and engineering use. To extend the life of the step drill bit, it is best to add oil before using it. Please add water to keep the temperature down when working with step bit.

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 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: Wednesday, Aug 26

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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Top Amazon Reviews


  • They worked fine for me
Size: 0.5 inches
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

  • Good tool
Size: 0.5 inches
I liked it as soon as it arrived and I used it of good quality
Reviewed in the United States on July 29, 2026 by Mena Tamayo

  • Worthless step drill bits
Size: 0.5 inches
These bits are completely worthless. I would give them zero stars, if I could. They do not cut through steel at all. This was a complete waste of money. Maybe they're okay for plastic or fiberglass, but they do not work at all for steel. I say they may be okay for plastic or fiberglass because I don't know and haven't tried. I bought them to cut a 3/4 hole in an electrical box because the knockout was not on the side that I needed it. My regular drill bit set goes up to half inch. I had no trouble with my drill bits getting the hole up to half inch. I tried with a step cutters at various sizes with zero reults. Please don't waste your money on this garbage product. ... show more
Reviewed in the United States on September 4, 2025 by Rich

  • Good
Size: 0.5 inches
Does the job. Three different sizes. The biggest size bit didn’t fit my impact but the others did even though they all looked like they had the same diameter input. Made out off great material and cut through metal and aluminum like butter.
Reviewed in the United States on May 21, 2026 by Tommy

  • Quality
Size: 0.5 inches
Good Quality
Reviewed in the United States on July 18, 2026 by RC

  • Puntas brocas
Size: 0.5 inches
Sirve para trabajos sencillos . Para trabajos exigentes no funcionará .
Reviewed in the United States on June 14, 2026 by Niover florez

  • A swing and a miss.
Size: 0.5 inches
For the price they work I guess. What these are for is if you need to drill a couple holes and don’t want to spend money on a decent step bit. I was able to drill two holes in stainless and almost two in sheet steel before one stopped cutting in sheet steel. Went to the other narrow bit with more steps on it and was able to complete the hole, but immediately I felt like it wasn’t as sharp as the first. I never tried the big triangle one. What was weird is it cut the stainless like butter and seemed to quit on the sheet steel. Maybe the two stainless holes dulled it, but that doesn’t explain the second not really cutting the sheet steel without some effort. Also the coating wore off pretty quick. Lesson here is just because something looks like something else that doesn’t mean it is the same. For cheap step bits I still like HF and I have never owned a serious high dollar quality step bit so I can’t comment on those. 3 stars for me meaning average. ... show more
Reviewed in the United States on February 27, 2025 by WESIII

  • Good Set of Step Drill Bits
Size: 0.5 inches
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 by jarvad.

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