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COMOWARE Step Drill Bit Set & Automatic Center Punch- Unibit, Titanium Coated, Double Cutting Blades, High Speed Steel, Short Length Drill Bits Set of 5 pcs, Total 50 Sizes with Aluminum Case

  • Based on 6,277 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, May 18
Order within 6 hours and 59 minutes
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Style: 6 Pcs Titanium


Features

  • HSS Titanium Coating - High speed steel along with titanium coating ensures outstanding durability and sharpness, can reduces the friction, runs cooler.
  • Meet Your Demands - With the step drill bits we offered, you can process different kinds of diameter holes, which greatly saves you a lot of trouble.Great for metal/wood/plastic countersunk. Suitable for Home DIY, and General Building/Engineering Use.
  • Design - The split point tip is at 118 degrees to increase the wear resistance. The two flute design provides a smoother cutting, allows the material particles escape easily for a much more clean drilling operation.
  • Easy Organizing - A drill bits holder with size index is included in the metal kit for easy storage and organizing without fear of it falling out.
  • Set Includes - The drill bits set includes five common sizes for versatility, can fit the majority of brands currently on the market.

Finish Type: Titanium, Steel


Shank Type: Hex


Cutting Angle String: 118 Degrees


Brand: COMOWARE


Tool Flute Type: Spiral


Is Discontinued By Manufacturer ‏ : ‎ No


Package Dimensions ‏ : ‎ 6.34 x 6.02 x 1.81 inches; 1.23 Pounds


Date First Available ‏ : ‎ May 26, 2018


Manufacturer ‏ : ‎ COMOWARE


Best Sellers Rank: #3,978 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #4 in Step Drill Bits


#4 in Step Drill Bits:


Customer Reviews: 4.4 4.4 out of 5 stars 6,277 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 18

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


  • Just what I needed.
Style: 6 Pcs Titanium
I couldn’t find my other set of 3 and needed them yesterday. So I got on Amazon and found these with next day delivery. Now it’s time to ruffle the feathers of the review checkers, these will get the job done, they come in a nice box with foam cutout for each bit. Haven’t used them yet because it’s been so hot, but I don’t think that I’ll have any issues with them. ... show more
Reviewed in the United States on August 10, 2023 by Michael D.

  • Good for me
Style: 6 Pcs Titanium
Need to drill some holes in a steel rack unit 1U blank. This worked, albeit slowly. Bit jumped a bit before I drilled so it is slightly off. I suspect that is what the punch is for but I was lazy. I would not call the case “rugged” at all, but it is cute enough for good storage.
Reviewed in the United States on July 30, 2023 by FilmComposer

  • Not That Good!
Style: 3Pcs
N/A
Reviewed in the United States on July 21, 2023 by John C Brewer Jr

  • You get for what you pay for
Style: Black and Gold
I bought this for basic EV plug installations. I just needed an affordable step bit to just be able to make a legitimate hole inside an electrical panel or tesla wall connector housing. I use this with a milwaukee fuel hammer drill and I have zero issues. Keep in mind if you put too much stress on the step bit, the chuck may not unwind. Use common sense and safety and this product should give you your moneys worth. ... show more
Reviewed in the United States on June 22, 2023 by Marky Mark

  • Worked very well so far.
Style: 6Pcs Titanium - Hex Shank
I owned and operated a developmental machine shop for 30 years, working mostly with exotic alloys, but for some reason never tried a step-drill. Finally, I had a small job at home that required putting a couple of holes in sheet metal in an awkward location and decided to give these a try. I was skeptical of the quality at this price. Fortunately, the drill size I needed to use worked beautifully. I ended up with a couple of nice clean holes. Drilling 2 holes didn't seem to affect the step-drill in any way, but I can't suggest how these bits would hold up under sustained use or with exotic alloys. As with any drill bit, some cutting oil will diminish the heat build-up at the cutting edge and extend the life of the tool. I only needed the one size of bit, so the extra were a bonus. Definitely worth the price for the job I needed to do. ... show more
Reviewed in the United States on May 7, 2023 by Been there before

  • Worth every penny
Style: 6 Pcs Titanium
I've bought the expensive uni-bits way too many times. They wear out so fast and for the price they are not worth it .but these right here last so long and you get a variety of sizes for less than half the cost of the expensive ones
Reviewed in the United States on June 25, 2023 by Ricardo Batista

  • Works great
Style: Black and Gold
High quality kit and it’s nice that it comes with a case. I mostly use them on sheet metal for HVAC
Reviewed in the United States on July 2, 2023 by Rob

  • Did what I needed, and lived to do more.
Style: 1Pcs
I needed to enlarge eight 1/2" holes to 3/4", in some mild steel square tubing. By working slowly, and using plenty of cutting oil, this bit did the job. The bit had some damage, but not too bad. Since this is my first step bit, I can't compare it to any other brands. It was cheap and did the job. GOOD ENOUGH! ... show more
Reviewed in the United States on April 19, 2023 by A. Tellurian

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