ZELCAN 34 Sizes M35 Cobalt Step Drill Bit Set, 1/8" to 7/8" Four Spiral Flute Drill Bit Set for Metal, Titanium-Coated HSS Unibit with 1/4" Hex Shank for Stainless Steel Aluminum Copper Wood Plastic
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Style: 3PCS M35 Four Spiral Flute NEW STYLE
Features
- Drilling Made Easy: With four sharp cutting blades, Zelcan's step drill bit set ensures quick and smooth drilling through steel, aluminum, copper, wood, plastic, and other tough materials, just like a hot knife through butter
- Versatile 34-Size Drill Bits: Our drill bit kit includes 3 drill bits, covering sizes from 1/8" to 1/2", 1/4" to 3/4", and 3/16" to 7/8". This comprehensive kit ensures the perfect solution for all your drilling needs
- M35 Titanium-Coated HSS Build: Made of M35 robust high-speed steel with a titanium coating, each step drill bit ensures exceptional strength and lasting endurance to withstand even punishing use
- Smooth & Clean Drilling: Designed with four-spiral flute, this step bit set enables faster cutting and drilling compared to dual or single flute bits. It also efficiently clears away chips for smooth performance
- Compact & Portable: Each of our unibit step drill bits comes in a handy storage case, keeping it accessible for both home and on-the-go projects. Stay organized and ready for action anytime, anywhere
Material: High Speed Steel (HSS)
Finish Type: Titanium
Shank Type: Hex
Cutting Angle String: 118 Degrees
Brand: ZELCAN
Package Dimensions : 3.86 x 3.19 x 1.26 inches; 4.66 ounces
Item model number : 4M35-03
Date First Available : February 5, 2024
Manufacturer : ZELCAN
Best Sellers Rank: #2,407 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #4 in Step Drill Bits #40 in Drill Bits
#4 in Step Drill Bits:
#40 in Drill Bits:
Customer Reviews: 4.4 4.4 out of 5 stars 12,997 ratings
Frequently asked questions
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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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Style: 6 PCS Straight Step Bit Set
Great set. Perfect for drilling holes in dash panels. Awesome value. Great quality.
Reviewed in the United States on August 5, 2025 by David
Style: 5PCS HSS Four Spiral Flute NEW STYLE
These are very sharp and seem to move fast great little tool used one bit to drill holes in a 55 gallon drum for a burn can got three drums done and the item is still working great.
Reviewed in the United States on August 20, 2025 by George Mac
Style: 5PCS HSS Four Spiral Flute NEW STYLE
Ill give it 4 stars because the smaller bits work great except the big one . The big bit breaks really fast. Only used it twice. Now I can't return it.
Reviewed in the United States on April 17, 2025 by Jason stephenson
Style: 5PCS HSS Titanium, 50 sizes
The have met my requirements and worked great.
Reviewed in the United States on June 1, 2025 by Nrod
Style: 5PCS HSS Four Spiral Flute NEW STYLE
Nice case, cut fast & have been very durable. Very handy to have for a quick job. Worth the money for sure & arrived quickly.
Reviewed in the United States on May 22, 2025 by The traveling mechanic.
Style: 5PCS HSS Titanium, 50 sizes
I'm always shocked at how expensive step drill bits are, considering this whole set costs about a third as much as a single step bit elsewhere. I bought this set because of the night and day difference I've found when it comes to drilling steel with cobalt bits versus plain HSS. I honestly haven't been disappointed in the quality of this set as far as drilling goes, which is the most important thing by far. The bits cut quickly and cleanly and don't appear to have dulled in over a year of use. There are a few downsides, but I consider them worth it for the price. First, the size markings inscribed on the bits are of varying quality. Some are more difficult to read than others, and they don't always line up with the steps, meaning I occasionally have to count down from the top to tell which marking goes with each step. Also, the case is in no way aluminum. It's part plastic, part imitation-plastic, but with a metal latch and hinges. It's actually a very nice case in spite of the materials, just don't expect it to take a lot of abuse.
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Reviewed in the United States on October 29, 2022 by Travis Holland
Style: 5PCS HSS Titanium, 50 sizes
They are good but you have to pour water on them when using for them not to rub out/ get dull. You can get it but its not for heavy duty for long
Reviewed in the United States on July 9, 2025 by Kaylikay
Style: 5PCS HSS Titanium, 50 sizes
Las brocas se ven robustas y de buena calidad. Aun no las he usado. Mas adelante actualizaré mi comentario.
Reviewed in the United States on July 29, 2025 by Alex Juanias