ZELCAN Step Drill Bit Set, 5PCS Four Spiral Flute Step Bits for Metal, 50 Sizes Titanium-Coated HSS Drill Bits with 1/4″ Hex Shank for Stainless Steel Aluminum Wood Plastic
Original price was: $35.99.$32.99Current price is: $32.99.






Price: $35.99 - $32.99
(as of Oct 04, 2025 11:25:46 UTC – Details)
Product description







Product Dimensions : 4.92 x 1.97 x 6.3 inches; 15.84 ounces
Item model number : SDB-4M35-3178
Date First Available : October 9, 2023
Manufacturer : CO-Z
ASIN : B0CKQFMV75
Best Sellers Rank: #3,564 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #7 in Step Drill Bits #76 in Drill Bits
Customer Reviews: 4.4 4.4 out of 5 stars 13,050 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Handle Drilling Tasks with Ease: With four sharp cutting blades, ZELCAN’s step drill bit set ensures swift, smooth drilling, effortlessly cutting through steel, aluminum, copper, and other tough materials like a hot knife through butter!
Titanium-Coated HSS Build: Crafted from robust high-speed steel with a titanium coating, our drill bits ensure superior hardness for faster cutting through harder materials while withstanding high temperatures and cutting forces, ensuring lasting performance.
50 Sizes Comprehensive Drill Bit Set: Our 5-piece step bit set caters to diverse drilling needs, with diameters ranging from 3/16″ to 1/2″ (6 steps), 1/8″ to 1/2″ (13 steps), 1/4″ to 3/4″ (9 steps), 3/16″ to 7/8″ (12 steps), and 1/4″ to 1-3/8″ (10 steps).
Quick Release & Tapered Edge Design: The 1/4″ hex shank and quick-release slot ensure secure connections and easy changes. The four-spiral flute design effectively evacuates chips from the hole, reducing the likelihood of clogging and improving drilling efficiency.
Easy Organization & Identification: Our step drill bits for metal come with a handy storage case, ensuring effortless organization and portability for all your drilling tasks. Clear size markings on each bit allow for quick identification.
Customers say
Customers find these drill bits to be a quality set that works well, particularly on steel and plastic materials, and consider them good value for money. They appreciate the nice carrying case and their ability to make perfect holes, especially in dash panels. The durability and sharpness receive mixed feedback – while some report they hold up well and remain sharp, others mention they don’t last long and lose sharpness over time. The cut quality is also mixed, with some finding them great for sheet metal while others say they’re not good for steel work.
13 reviews for ZELCAN Step Drill Bit Set, 5PCS Four Spiral Flute Step Bits for Metal, 50 Sizes Titanium-Coated HSS Drill Bits with 1/4″ Hex Shank for Stainless Steel Aluminum Wood Plastic
Add a review
Original price was: $35.99.$32.99Current price is: $32.99.

David –
Perfect for custom work.
Great set. Perfect for drilling holes in dash panels. Awesome value. Great quality.
Paul Jameson –
Paul J.
good product works well
Jason stephenson –
Good except the biggest bit.
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.
The traveling mechanic. –
Great product.
Nice case, cut fast & have been very durable. Very handy to have for a quick job. Worth the money for sure & arrived quickly.
George Mac –
These are very sharp use gloves
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.
Esteban v. –
Recomendable
Muy util y calidad exelente
Kaylikay –
Its ok buthas to resharpen
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
Travis Holland –
I’ve used my set quite frequently for a year now, and it’s held up perfectly so far.
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.
Benoit Davignon –
perforé de l’acier et les forêts ont tenu le coup.
jess –
Buena calidadTiene diferentes medidas
Austro Management Services –
packaging is good, quality is average
Jim –
Exactly as described.. had the case as well !!
Denis Chudaikin –
¡Está bien! Entrega rápida. Producto de buena calidad.