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Model #48-89-2331

Store SKU #1001294844

Cobalt Red Helix Drill Bit Set for Drill Drivers (15-Piece)

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  • QUADEDGE TIP decrease heat build up for faster drilling
  • RED HELIX for rapid material extraction
  • ENHANCED TAPERED WEB increases flute durability & core strength
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Product Overview

The MILWAUKEE 15 piece Cobalt RED HELIX Drill Bit Kit is engineered for extreme durability and long life in hard metal applications. The drill bits are designed with Variable Helix featuring an aggressive 35 degree Helix Angle ending at 15 degree . This allows for Rapid Chip Removal, limiting heat buildup to stay sharper longer. The 135 degree split point bit tip delivers a precision start and prevents walking for fast, accurate holes. The heavy duty drill bits are ideal for tough applications and provide Up to 10X life vs Black Oxide drill bits. The bit in the kit can be used in all twist drilling applications.
  • Up to 10X Life vs. black oxide
  • RED HELIX design for rapid chip removal
  • 135 degree split point for precision start no walking
  • Chip breaker decreases heat buildup
  • Secure grip - prevents bit from slipping in chuck
  • 15PC kit
  • Over $80 Value
  • Includes: 1/16 in., 5/64 in., 3/32 in.,7/64 in., (2)1/8 in., 9/64 in., 5/32 in., 3/16 in., 7/32 in., (2)1/4 in., 5/16 in., 3/8 in.
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Customer Reviews

  • 4.2
    out of 877 reviews
  • 76%recommend this product
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Showing 1-10 of 877 reviews
I would look at other options
Being a loyal user of Milwaukee I was in need of stronger than average drill bits for drilling metal. I searched a few options and landed on the 48-89-2331 15pc Cobalt drill bit set. Being its rare that I drill through hard metals I figured the 15pc set would get me through quite a long time should I ever need to use them again. Here's what happened I have 2yd dumpsters that I need to attach brackets to in order to move dumpsters from trash rooms to staging area, which requires drilling two 3/8" holes for bracket. The first two holes it was great the 3/8" bit went through the steel with minimal effort, the second set of holes not so much I was confused as to why on the start of the third hole felt like I was getting nowhere. Finally I got through the third hole and started on the final hole. I looked at the bit and realized half of the QUAD EDGE TIP was missing not the end of the world so I reached for the 1/4" bit and started a pilot hole. Midway through with the 1/4" bit snapped, leaving just enough metal that I was able to finish it off with the 3/8" bit. Unfortunately in the coming months I will have 16 more dumpsters that will need the same bracket installed being 32 holes total. Milwaukee might still have a little homework to do in these bits.
Response from Customer ServiceApr 8, 2022
Hi! We are sorry to hear that you are not having the best experience with the 15 Piece Cobalt RED HELIX™ Kit. We will email you so we can address your concerns. -Cayla with Milwaukee Tool
    not good at all,
    They don't work at all,they broke easily,don't make a hole on weak material ,I had use the cheapest step drill bit from harbor freight or even a drilling screw did the hole but not this cobalt set ,also they bend, this drill bits they are terrible quality.
    Response from Milwaukee ToolJan 4, 2022
    Hello, this is Cayla with Milwaukee Tool. Max, thank you for your review. We’re sorry to hear that your experience was not of the standard that you expected. We would like the opportunity to investigate your feedback further, so please feel free to contact us directly at socialmedia@milwaukeetool.com if you would like further investigation into this matter. Look forward to gaining resolution on this for you. Thank You
      1 found this review helpful
        This set has 32,768 possible values.  It's fifteen bits.
        On a related note, there are 10 kinds of people in the world—those who understand binary numbers, and those who do not.
        • Recommended
        3 found this review helpful
        Great all purpose bits
        [This review was collected as part of a promotion.] This 15 piece cobalt drill bit set is perfect for your average Joe or for a handy man. The carrying case is heavy duty and convenient for storage and transportation. The bits are not easy to tug out, but they also don’t jostle around at all. The bits in the case pivot forward to allow for easy access and replacement. The performance of the actual bits themselves is great, I have been satisfied with the results. Overall a great functional product ! Highly recommend.
          • Recommended
          [This review was collected as part of a promotion.] you get a 15 piece set that Includes: 1/16 in., 5/64 in., 3/32 in.,7/64 in., (2)1/8 in., 9/64 in., 5/32 in., 3/16 in., 7/32 in., (2)1/4 in., 5/16 in., 3/8 in., 1/2 in. I love that they can be used on wood, stainless steel, black pipe and thick metals. I used it to put a subfloor on my bedroom floor. They worked great . They are super strong and did not break or strip my screws. They are durable love the precision.
            • Recommended
            Great bits
            [This review was collected as part of a promotion.] These bits get right through and so far no issues with durability. This set comes with a good variety of sizes and in a helpful organizing case. But mostly what you need to know is, they work and won't snap.
              • Recommended
              Like butter....
              [This review was collected as part of a promotion.] ....ok, so I realize that you have to use these for a few times to be able to comment on how effective and lasting they are so take this review w/ a grain of salt. I've only used them a few times. I did cut into some 1/8" thick aluminum and it cut through like butter. the bit didn't slip at all, cut right through and left a very clean hole. I took a video but can't seem to load it. Carrying case is nice too...I have another one that has a slide latch that is all jacked up, this one doesn't look like it'll do that but that's pretty minor. Overall, big fan of these bits.
                • Recommended
                Milwaukee Tool is a brand I trust
                [This review was collected as part of a promotion.] Milwaukee Tool is a company that I’ve always trusted. In my line of work I use tools and they need to be reliable. Milwaukee is always the best quality and last me the longest. The 15 piece Helix Red set is exactly what I expected from Milwaukee. The drill bits are strong and work perfectly. The quality is always top notch. These drill bits can go through almost any material with no problem. They are easy to attach and look great too. When it comes to my career I want the absolute best. Milwaukee is a must in my line of field.
                  • Recommended
                  [This review was collected as part of a promotion.] I got these a while back and have used them several times. They are sturdy and cut nicely on multie types of materials. The bits are made of cobalt. It comes with an assortment of sizes also. The bits themselves also grip very well to the drill.
                    • Recommended
                    Well Made and Sturdy
                    [This review was collected as part of a promotion.] I work in a shop and regularly drill wood and sheet metal. This set is perfect. I used them all day yesterday including through the metal and the bits stayed sharp and didn’t break. The case is also good to keep the bits organized with clear labeling.
                      • Recommended
                      Showing 1-10 of 877 reviews