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Internet # 100670139

Model # 48-89-2801

Store SO SKU #1000112861

Black Oxide Twist Drill Bit Set (21-Piece)

$29.97
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  • 135° Split Point Tip for precision starts and faster holes
  • Thicker core resists breaking
  • Black Oxide coating for corrosion resistance
  • View More Details
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Product Details

About This Product

The MILWAUKEE® THUNDERBOLT® 21PC Black Oxide Drill Bit Set offers heavy-duty performance on the jobsite. Black Oxide coating reduces heat build-up and provides corrosion resistance. The thicker core provides ultimate strength and protects against side-load breakage while a specially designed parabolic flute form clears chips and debris fast to keep the bit cool. The 135° split point tip delivers a precision start and prevents walking for fast, accurate holes. MILWAUKEE® THUNDERBOLT® Black Oxide Coated bits are ideal for various drilling applications in wood, plastics, and metals. The set is organized in a customizable accessory case designed for use in PACKOUT™.

Highlights

  • 135° Split Point Tip for precision starts and faster holes
  • Thicker core resists breaking
  • Black Oxide coating for corrosion resistance
  • Parabolic flute form clears chips fast
  • 3-FLAT SECURE-GRIP™ prevents bit from slipping in chuck
  • Designed for use with Drill Drivers
  • Ideal for Metal, Wood, & Plastics
  • Customizable accessory case is designed for use in PACKOUT™
  • Includes: (2) 1/16, (2) 5/64, (1) 3/32, (1) 7/64, (2) 1/8, (1) 9/64, (1) 5/32, (1) 11/64, (2) 3/16, (1) 13/64, (1) 7/32, (1) 15/64, (2) 1/4, (1) 5/16, (1) 3/8, (1) 1/2
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  • Return Policy

Product Information

Internet # 100670139

Model # 48-89-2801

Store SO SKU #1000112861

Additional Resources

Shop All Milwaukee
From the Manufacturer

Specifications

Details

Bit Material

Black Oxide

Drill Bit Type

Twist

Drill Bit Type(s) Included

Twist

Features

No Additional Features

Individual/Set

Set

Material Application

Duct/Sheet Metal, PVC, Wood

Number of Pieces

21-30 Pieces

Number of Pieces

21

Returnable

90-Day

Shank Style

3-Flat

Tools Product Type

Other

Questions & Answers

114Questions
caret
Q:Does the set model 48-89-4635 come with a 1/2 inch bit? As shown in picture? This question is for Milwaukee.
by|Apr 4, 2024
2 Answers
Answer This Question

A:  As per previous answer the sizes are listed in one of the pictures, should be in the specs. But they only go up to 3/8 '. As far as.I can see.

by|Apr 9, 2024

    A:  The 21 piece set 48-89-4635 does come with the 1/2 bit. It tell you what is included in it on one of the picture and the 1/2 bit comes with it.

    by|Apr 9, 2024
      1 found this answer helpful
      caret
      Q:Why are Most of the Reviews for the "Milwaukee Titanium Twist Drill Bit Set " actually Reviews for "Milwaukee Cobalt Drill Bit Set" ?????
      by|Mar 25, 2024
      0 Answer
      Answer This Question
      caret
      Q:Can I use this with my M12 2401-20??
      by|Mar 18, 2024
      1 Answer
      Answer This Question

      A:  Hi Rosa, the 2401 accepts 1/4" hex bits, so these twist drill bits will not work with that model! - Milwaukee Tool Social Team

      by|Mar 21, 2024
        caret
        Q:Can I use this with my m12 Milwaukee cordless drill driver? Are they compatible?
        by|Jan 14, 2024
        1 Answer
        Answer This Question

        A:  These bits are compatible with drill drivers and impact drivers. - Milwaukee Tool, Social Team

        by|Jan 16, 2024
          Showing 1-4 of 114

          Customer Reviews

          4.5 out of 5

          • 4.5 out of 3,401 reviews
          • 82% recommend this product
          Filter by:
          Showing 1-10 of 3,401 reviews
          Did Exactly What It Was Purchased For
          I needed to remove a badly rusted 5 mm screw in a difficult to access location. I wasn't sure whether to go with the Cobalt bits or the Titanium Nitride bits, but eventually settled on the Titanium. I started with a 1/8-inch bit on a six-inch locking extension bar and my cordless drill in low gear. I gradually worked my way up to a 3/16-inch bit, using some cutting oil on each bit. All of the bits cut cleanly into the screw head, which was safely removed after about five minutes of drilling.
          by
            • Recommended
            Sharp, durable bits
            This set is the Milwaukee Cobalt Red Helix 15 pc Drill Bit Set which comes in a sturdy, compact case. No more bits falling out everywhere however some of the bits fit in pretty tightly and are somewhat difficult to remove. Each bit has it's own spot in the case but the labeling is a little confusing (see pic) and hard to see when fully opened. A big plus is the quad edge tip which is pointed and makes it easier to begin your drilling in a precise spot. The larger bits have flattened areas to help the bit from slipping in the base. Sharp and sturdy and easily cuts through most materials.
            by
            • Recommended
            Great quality
            I try to get Milwaukee brand tools every time I need tools. The design, workmanship, and ease of use is always present. This Cobalt metric drill bit set is the same quality I'm used to. This set features 19 bits ranging from 4.5 mm to 10 mm in .5 mm increments. The storage case is durable and designed well. I needed to drill pilot holes in my livestock trailer to mount new lights. The bit worked perfectly. Highly recommended!!
            by
            • Recommended
            only worked at first use to drill a hole in steel
            Only worked at first use to drill a hole in a steel bed frame. The second time to drill second hole, they behaved very differntly from the first time use, much slower than drilling the first hole. after finishedd the fouth hole, the drill head was damaged(see picture)
            by
            Response from Milwaukee ToolDec 18, 2023
            David, we are sorry to hear about your experience with your drill bit set soon after purchase. We want to get you connected to our product management team. Could you email our team at Social.media@milwaukeetool.com? Thank you, Milwaukee Tool, Social Team
              Work well, but smaller bits are too short
              These bits work fine overall and it’s nice that I can quickly change between them in my impact or drill; however, the smaller bits are too short. With any standard 1/8”drill bit I can usually get through a 2x4. I can even do it with a 7/64” bit if I keep it light in the chuck. So that’s a flaw in my opinion. I’m glad they give you two of each for sizes 5/32” and below, but getting bits in and out of the case isn’t particularly easy.
              by
              Response from Milwaukee ToolDec 7, 2023
              We appreciate your honest feedback regarding the sizing of the bits. While we are glad to hear about your experience with the overall performance, we will pass your feedback on length along to our product teams. If you have any additional feedback, feel free to email our team at Social.media@milwaukeetool.com. Thank you - Milwaukee Tool Team
                • Recommended
                1 found this review helpful
                Does not come with packout case like advertised
                I have been building a large packout set up and specifically ordered this item because it was suppose to come with a packout compatible case. it did not.
                by
                Response from Milwaukee ToolOct 23, 2023
                We recommend reaching out to Home Depot for assistance on your tool. Please feel free to also reach out to our team at social.media@milwaukeetool.com. - Milwaukee Tool, Social Team
                  2 found this review helpful
                  Terrible case design
                  I have not even used the drill bits yet, but already hate the case. The set I ordered on Sep 21, 2023. The case is not a continuous hinge like is shown in the picture. It has 2 separate hinges with a finger sized gap in the middle. If you hold the case like I did you will hate it as soon as you close the case. As far as the drill bits go, I plan of saving these for light duty (no metal) so I don't break any.
                  by
                  Response from Milwaukee ToolOct 4, 2023
                  Hi Scott - Can you send us an email at social.media@milwaukeetool.com? We want to assist! - The Social Team
                    • Recommended
                    1 found this review helpful
                    Very sharp and quick acting
                    I just recently used the Milwaukee Cobalt Red Helix Metric Drill Bit Set for Drill Drivers (19-Piece) for installing some metal slide-out shelving in our kitchen cabinets. The 2.5mm bit was the perfect size for pre-drilling the screw holes for the frames. I was impressed by how quickly and effortlessly the bit bored into the cabinet. With 19 individual sizes, there’s a very gradual progression in diameter from one to the next, letting you find just the precise one for the job.
                    by
                    • Recommended
                    Bad Case of Labeling
                    If you're a seasoned woodworker who can tell the size of a bit just looking at it, maybe this set is for you. Otherwise, its case, with its 3 rows of bits, makes finding the right bit unnecessarily difficult. The large bit size markings are obscured by the medium bits. The medium bit markings are exactly where you'd expect -- for the small bits. The small bit markings are so far down, they disappear if you tilt the holder upright within the case. Such a poor design. Will return.
                    by
                    Response from Milwaukee ToolOct 3, 2023
                    Thank you for taking the time to leave a review! Our team appreciates your feedback and will make sure to pass it along. Feel free to email our team at social.media@milwaukeetool.com if you have additional feedback! - Milwaukee Tool, Social Team
                      1 found this review helpful
                      These really work for hard metals
                      I'm reviewing these Milwaukee cobalt red helix 15 piece drill bit set for hard metal, I'm a tool and die Maker with over 40 years experience, and for hard metals and hard stainless steel these drills work very well. I drilled hard 17-7 stainless steel as well as Spring temper 302 stainless steel with ease. With a normal jobber's drill trying to drill through the 17-7 will heat up the drill to the point of turning blue and damaging the end of the drill. These Milwaukee drills had no problem with it. The only issue would be once they do get dull it would be difficult to resharpen these with the kind of point they come from the factory.
                      by
                      • Recommended
                      1 found this review helpful
                      Showing 1-10 of 3,401 reviews