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NEIKO 10181A Step Drill Bit Set, 3 Piece, Spiral Grooved for Faster Drilling, Step Bits for Stainless Steel, Metal, Wood, Plastic, Unibit Cone Drill Bits with 31 Step Sizes Total

Description:

About this item:

  • PREMIUM STEP BIT: Each unibit is constructed of industrial high-speed steel with a titanium nitride coating for durability and strength to punch and drill clean holes in materials like plastic, aluminum, wood, copper, stainless steel, and other types of sheet metal.
  • STEP DRILL BIT FOR METAL: With a split point tip that accelerates cutting speed while preventing angled walking away from center line of bore, drilling holes in metal is fast, efficient, and clean.
  • SPIRAL DESIGN: The two-flute spiral grooved design deburrs chip, dust and debris for clearance and smooth cutting. With 31 step sizes, each hole made with these step bits will be precise.
  • QUICK-CHANGE: The 1/4-inch hex shank makes for easy, convenient, and quick stepper bit switches and is compatible with impact ready power tools.
  • INCLUDES: Each bit set comes with 3 drill bits of a combined 31 sizes to add to your drilling arsenal: 13 step drill (1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2-inch) 6 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2-inch) and 12 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8-inch).
  • Each step drill bit manufactured by NEIKO comes with precision manufacturing and is built with high-grade high-speed steel. Our step bits, or known as unibits, come with a titanium coating that promote the strength and cutting power of each of these drill bits. In this 3 piece set, you get a total of 31 step sizes to create clean holes in metals, plastic and wood. The spiral grooved design deburrs faster and gives you clean cuts every time. Each bit set is engineered for faster drilling and you can have confidence in knowing you will get the job done with accuracy and efficiency with bits that truly perform. Need a center punch to start your hole drilling? Be sure to check out the 02638A 5" Center Punch and the 02639A 6" Center Punch.

    Review:

    4.8 out of 5

    95.38% of customers are satisfied

    5.0 out of 5 stars These cut like a knife through butter.

    F.L. · June 5, 2025

    (function() { P.when('cr-A', 'ready').execute(function(A) { if(typeof A.toggleExpanderAriaLabel === 'function') { A.toggleExpanderAriaLabel('review_text_read_more', 'Read more of this review', 'Read less of this review'); } }); })(); .review-text-read-more-expander:focus-visible { outline: 2px solid #2162a1; outline-offset: 2px; border-radius: 5px; } I tried these for the first time and found them very effective for drilling in light metal shelving. It cuts through material quickly and accurately. I'm looking for new opportunities to use these.

    5.0 out of 5 stars Holy moly awesome sauce

    N. · April 25, 2025

    Works as described and this is my second purchase of this brand to extend my collection not replace. This thing cuts so many things and does so without ripping and tearing like a spade does. This is perfect for making any size hole that is labeled.Well made and has weight. I use this mostly making holes in 3mm to 6mm plastic for diy projects and it works great.

    4.0 out of 5 stars Works good on plastic

    C. · March 22, 2025

    Good step bit that easily drilled into plastic. Haven’t used for metal or wood so no information to share on that and long term durability is unknown.

    5.0 out of 5 stars drill bits

    R.H. · May 27, 2025

    work great for me would buy again

    5.0 out of 5 stars It Really Works

    A.C. · May 9, 2025

    I purchased this bit for enlarging holes. This bit has saved me in so many ways. It has quality and is worth every penny.

    5.0 out of 5 stars A must have for your drill machine

    N. · April 15, 2025

    Only if somebody told me to buy this earlier. :(During working with tin, I realized that there is step bits to cut tins and ordered these. After that, these are my go to for making holes!Try using these to make holes under the planter. Loved those crispy borders, no mess anymore!

    5.0 out of 5 stars Excelente producto

    J.r. · May 18, 2025

    Excelente producto

    3.0 out of 5 stars Works, but is not smooth . . .

    T. · May 2, 2019

    I bought this so I could put a new grommet into my Weber Smokey Mountain Smoker. My model was an older model and didn't come with the grommet that allows for temp probes to pass through and monitor the temp of the inside of the smoker and the meat being smoked. When I purchased the grommets (it came 2 to a pack), Bolo recommended this drill bit for making the hole in the smoker to allow for mounting the new grommet. I already have a drill bit like this one from a name brand, BUT it wasn't big enough to accommodate the grommet I was purchasing. So, since I needed this to make my project work and since it was about 25% of what I paid for my other one, I bought it. Also, I factored in that I was probably only going to need to use it once, ever, so it made sense to get this product at the same time of purchase as the grommets.When the grommets and drill bit arrived, I was pleased and excited. I cleaned up the outside of the smoker where I was going to drill and then put some painters tape over the designated spot to try and prevent the enamel from chipping. I then started to drill. The tape seemed like a good idea at the time, but the tape quickly peeled and got stuck in the drill bit. I eventually pulled the tape off completely about 1/3 of the way through for drilling. I needed to make a hole that is 1 and 1/4" in diameter, which was the second to last step on the bit. I was trying not to go too fast 'cause I was worried I would get overzealous and drill the hole too big and then I'd be Really Mad 'cause I would have messed up my smoker. So I took my time and kept on going. When I got about 3/4 of the way through, the bit was not very smooth - not like my other name brand bit. I was getting even more scared that I was going to mess up my smoker and it was making me nervous using this drill bit. However, I had already come this far and there was no turning back at this point. So, I pressed on, but gently.The biggest problem I was encountering was that the bit would catch on the opening it had created with each step that it passed through on the bit and I had to be careful not to cut my fingers, mess up my drill or mess up my smoker. It was frustrating because it wasn't a smooth drilling process at all. However, I eventually got to the stopping point and took the bit out. I could see a nasty burr of sharp metal hanging from the opening I had just created. So I put the drill on the other side of the hole and very gently drilled from that side just long enough to get rid of it and make the opening fairly smooth. Then, I was finally able to install the grommet and breathe a sigh of relief that I had not messed up my smoker.I share all of this with you, the reader, to let you know that this product did work, BUT it was not very smooth and if the name brand bit I had was big enough, I would gladly have used it instead. Knowing what I know now, I would caution you on purchasing this and remember my experience with this drill bit. It Can do the job, but you have to be super careful with it, or you might mess something up that you can't fix later and that would be very, very bad, I would imagine. I give this product 3/5 stars, because it did do the job and the price was nice, but you get what you pay for and you definitely have to be careful with it.

    Excelente

    A.S.C.R. · November 1, 2024

    (function() { P.when('cr-A', 'ready').execute(function(A) { if(typeof A.toggleExpanderAriaLabel === 'function') { A.toggleExpanderAriaLabel('review_text_read_more', 'Read more of this review', 'Read less of this review'); } }); })(); .review-text-read-more-expander:focus-visible { outline: 2px solid #2162a1; outline-offset: 2px; border-radius: 5px; } Excelente producto y práctico

    Muito bom!

    J. · May 20, 2024

    The media could not be loaded. Gostei do material do produto!

    Great

    K.C. · August 26, 2023

    I tessted this on a piece of three eight flat bar it cut through easy enough with a little cutting compound J managed to cut a hole the full diameter of the step bit great piece of kit.

    Good tools

    s. · December 31, 2023

    Works well. hope it lasts long.

    EXCELLENT DRILL BITS

    A.R. · April 25, 2021

    Have used these to drill out stainless allan key studs. With the appropriate drilling fluid, they were drilled out with ease. Very happy!

    NEIKO 10181A Step Drill Bit Set, 3 Piece, Spiral Grooved for Faster Drilling, Step Bits for Stainless Steel, Metal, Wood, Plastic, Unibit Cone Drill Bits with 31 Step Sizes Total

    4.4

    AED12448

    Size: Spiral
    Style: 1/4" Quick Change Hex
    Pattern Name: 1/8 to 7/8", 3 bits

    Quantity:

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    Return and refund policies

    Product origin: United States

    Electrical items shipped from the US are by default considered to be 120v, unless stated otherwise in the product description. Contact Bolo support for voltage information of specific products. A step-up transformer is required to convert from 120v to 240v. All heating electrical items of 120v will be automatically cancelled.

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