Lichamp Jumbo 2-3/8″ Unibit Step Drill Bit for Metal, Extra Large Drill Stepper Bit for Hard Metal Heavy Duty, 12 Sizes from 1/4″ to 2-3/8″, Spiral Grooved, C5BK
Original price was: $39.30.$36.99Current price is: $36.99.
Price: $39.30 - $36.99
(as of Oct 10, 2025 03:13:09 UTC – Details)
From the brand
Step Drill Bit
Cutting Tool
Package Dimensions : 4.96 x 3.11 x 2.87 inches; 1.57 Pounds
Item model number : SDB-C501BK
Date First Available : November 8, 2021
Manufacturer : Lichamp
ASIN : B0B433Y9XB
Best Sellers Rank: #10,967 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #18 in Step Drill Bits
Customer Reviews: 4.4 4.4 out of 5 stars 1,632 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); } }); });
ONE BIT FOR ALL DRILLING: One bit can drill 1/4 inch, 3/8 inch, 19/32 inch, 3/4 inch, 1 inch, 1-3/16 inch, 1-3/8 inch, 1-5/8 inch, 1-3/4 inch, 2 inch, 2-3/16 inch, 2-3/8 inch 12 different diameters of holes, saves time and effort in replacing the bit
DURABLE AND STRONG: Durable high speed steel with black coating ensures durability and sharpness, reduces friction, runs cooler, resists heat, corrosion and rust, and extends the life of the cutting edge even in extreme temperatures
EXTRA LARGE STEPS DRILL: Shank diameter is 13 mm (1/2 inch), use one step drill to drill different sizes of holes, much more convenient than using multiple drills, ideal for DIY projects in home, garden, workshop
HIGH PERFORMANCE: Split tip is at 118 degrees for better wear resistance. Double helix blade design makes smoother cuts, easier to dislodge material particles and cleaner drilling operations, can be used with electric drills, rechargeable drills and more
WELL DESIGNED: Provides stability during the drilling process, minimizes noise and vibration. To improve performance and extend drill bit life when working with metal, we recommend using cutting fluid for lubrication.(Cutting fluid not included)
Customers say
Customers find the drill bits work well for opening holes and appreciate their value for money. The quality, cutting performance, durability, metal performance, and step size receive mixed feedback – while some say they cut great and are strong, others report they’re not very sharp, break on first use, and aren’t suitable for heavy metal work.
13 reviews for Lichamp Jumbo 2-3/8″ Unibit Step Drill Bit for Metal, Extra Large Drill Stepper Bit for Hard Metal Heavy Duty, 12 Sizes from 1/4″ to 2-3/8″, Spiral Grooved, C5BK
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Original price was: $39.30.$36.99Current price is: $36.99.
Jordan –
Exactly what I was looking for
Very sharp, worked perfectly for what I needed!
vince –
Very good. Sharp cut, low effort.
Worked perfectly. I needed to drill a hole through steel bracket I purchased to better route a cable. Went through quickly and with little effort. Recommended.
BRIAN A. HIGGS –
Good product
Does a good job on metal
Amazon Customer –
so far so good
works great
Martin –
Effective and good Choice for larger holes
Great price, A- cut. It takes a second to get used to. You’ll need a proper drill as an impact wrench will neither fit the bit, nor cut properly. This wants a steady, medium, high torque turn. An impact driver will make a sloppy cut in plastic. However with the proper tools, this works well. Its ‘stepping’ is discreet, meaning it jumps from one diameter to the next with in between diameters not as clean as the diameters that are written on the bit.
WEST JACOBS –
it’s sharp and clears out when cutting
for what I needed to open a hole in thick plastic this worked very well.
Jazznupe –
Almost a one-time use bit for my application
Recently I had to add an attachment to the tractor bucket that required 8 holes to be drilled. My plan was to use a bit to get the hole started and then use a step bit to finish the holes. I must say that I began the job without any cutting oil and after about 30 minutes, I only had very hot drill bits, a not so useful step bit that I already owned, and only about a hole and a half completed. I chucked those bits and old step bit and then purchased some new bits and this step bit. A week later, I tried this with cutting oil and the new bits and it did help a lot. I was more able to get the bits to bite and tap the holes and then I used this step bit to finish the hole. However, it was not magic. I still had to work pretty hard, after the first couple of holes which went fairly easy. The next holes got progressively more difficult. In other words, the step bit dulled fast even with a very liberal use of cutting oil. They oil still got hot enough to smoke and the step bit just wasn’t grabbing at some points. I tried multiple methods and speeds to get these holes done. I used a lot of oil. So, the step bits worked but not as good as folks were saying they did at least not for me. I would actually rate them a 3.5 if able to give partial stars. Hope that helps.
Raul Torres –
10/10
Love the unabit, definitely comes in handy, and cuts very well!!
Robin B. –
Perce sans problème les boîtiers de metal
Mike Frampton –
A nice quality bit for a reasonable price.
Jean-Paul Chailler –
Semble de bonne qualité.
Erin McKay –
Amazing bit for price! Not great through thick metal but thinner metal like boxes and sides of panels it cuts through like butter. 1/2 the price of similar brand name bits
Sleep Enthusiast –
This product is much cheaper than the options I would normally go for, but works just as well. I’ve used many different types of step bits and this one is my favourite so far.