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The NEIKO 10181A Step Drill Bit Set features 3 high-speed steel bits with titanium nitride coating, offering 31 precise step sizes. Its spiral flute design accelerates drilling by efficiently clearing debris, while the split point tip prevents walking for clean, accurate holes in metal, wood, plastic, and more. Compatible with quick-change hex shanks, this set is engineered for professionals demanding speed, durability, and versatility.





| Asin | B07B4LCWC4 |
| Best Sellers Rank | #3,060 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #4 in Step Drill Bits |
| Brand Name | NEIKO |
| Customer Reviews | 4.3 4.3 out of 5 stars (5,669) 4.3 out of 5 stars |
| Cutting Angle String | 135 Degrees |
| Finish Types | Titanium |
| Global Trade Identification Number | 00816914021617 |
| Included Components | Grooved step drill bits |
| Item Dimensions | 6 x 3.5 x 0.75 inches |
| Item Type Name | Quick Change HSS Titanium Coated Spiral Grooved Step Drill Bit 3-Piece Set | 31 Step Sizes in One Kit |
| Item Weight | 4.16 ounces |
| Manufacturer | Neiko |
| Material Type | 1/4" Quick Change Hex |
| Minimum Bore Diameter | 0.75 Inches |
| Model | 10181A |
| Number Of Flutes | 2 |
| Number Of Pieces | 3 |
| Part Number | 43219-22909 |
| Point Style | Split Point |
| Set Name | 3-Piece Spiral Grooved Step Drill Bit Set |
| Shank Type | Hex |
| Surface Recommendation | Stainless,Wood,Aluminum,Stainless Steel,Copper,Plastic,Metal,Steel |
| Tool Flute Type | Spiral |
| Unit Count | 1.0 Count |
| Upc | 816914021617 |
User
Good quality
Very solid quality, highly recommend!!
User
Good Value & Clean Cuts
The bits seems sturdy. I've drilled many different materials with great success (plastic, wood, and metal) it makes very clean holes and suspect the bits will last a long time.My only complaint is the letters for the hole sizes on the bits are hard to read, and the font has already worn off after a few uses. Kind of expected though so it's not a big deal.
User
No Markings for hole size on bits
The bits worked fine. I needed to cut holes in plastic fenders to insert turn signals on equipment. The bit worked fine . I put tape on the depth I wanted to stop at since there were no hole size markings on the drill. Not earth shattering but if you drill the wrong size too big that would be a big mess. I did fine. Just be aware this style bit wants to keep going on thru and plastic was like going thru hot butter. Use tape on the bit to see where to stop. All 3 were cheaper than 1 bit so I'd use this still anyway for the price!
User
Works Great
They do they job
User
Good set for a reasonable cost
This set provides everything most people would need. It’s a good value for what you get. I’ll update this if I can once I know how they last however, I am happy with the purchase.
User
Worth it
It’s awesome. Has not snapped on me. :)
User
Not suitable for HVAC
I do HVAC installs and have only used this a handful of times and it's too dull to cut anything. Was just trying to widen some holes in an electrical box today to hook up some whips and this died on the fourth one. For some products it really does make sense to get a higher quality, and this is one of those.
User
You Get What You Pay For
These bits technically are functional as advertised, but they definitely don't even come close to the legit name brands.If you're working with wood, plastic, or a soft metal these are perfectly fine. but if you're working with 1/8 inch steel or thicker, these things will try to break your arm. The metal comes off as tiny chips instead of little curly spirals, that should tell you everything.I only used the smallest bit to test out, and it was not pleasant. There's no way I'd use one of the wider bits with the metal I'm drilling. You'd probably break your arm or your drill with a powerful enough tool.
User
ótimo produto.
Bom vendedor
User
Muy Bueno Lo Boberías a Comprar
Si Me Gusto Perfora Muy Bien el Metal,Madera, Aluminio Etc.
User
Good
Looking good item. Hopefully they last long
User
Muy resistentes
Muy prácticas, ahorran mucho tiempo, además ultra resistentes
User
Great step bits For electricians
These are great bits if you are an electrician as they are quick to cut through thin gauge steel or aluminum for connectors.
Trustpilot
3 weeks ago
2 weeks ago