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SHOCKWAVE 1/4-20 UNC Steel Impact Rated Drill Tap Bit

$847
  • Ideal for drilling and tapping at the same time
  • 1/4"-20" UNC Impact Drill Tap Bits
  • 20 Threads per inch for use in up to 1/4" metal
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Frequently Bought Together

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Price:
$847

Product Overview

The Milwaukee SHOCKWAVE 1/4 in. - 20 in. UNC Impact Drill Tap Bits tap and drill at the same time. The bits features 24 threads per in. and is intended for use in up to 1/4 in. metal. The drill and tap bits have laser etched sizes for easy size identification. The tap drill bit is design for use in Impact Drivers and Drill Drivers.
  • Ideal for drilling and tapping
  • 1/4-20 UNC
  • 20 threads per inch
  • Laser etched size for easy size identification
  • 1/4 in. quick change hex shank
  • Designed for use in impact drivers and drill drivers
  • For use in up to 1/4 in. metal
  • Shop All Milwaukee Tools

Additional Resources

From the Manufacturer

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Specifications

Dimensions

Bit Length (in.)
2.21
Shank Diameter
1/4 in

Details

Bit Material
Steel
Drill Bit Type
Specialty
Drill Bit Type(s) Included
Specialty
Individual/Set
Individual
Material Application
Angle Iron,Duct/Sheet Metal,Steel
Number of Pieces
1
Returnable
90-Day
Self-Feeding
Yes
Shank Style
Hex
Tools Product Type
Power Tool

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4
    out of 87 reviews
  • 69%recommend this product
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Showing 1-10 of 87 reviews
Also broke on 4th tap
I read another review where their bit broke on the 4th hole, thought I was just dealing with wood and not metal so maybe give it a try. Exact same result, 3 good taps and it broke on the 4th.
by
Response from Milwaukee ToolNov 30, 2021
Hello, this is Cayla with Milwaukee Tool. Thank you for taking the time to leave your review. I'm sorry to hear that your Milwaukee SHOCKWAVE 1/4-20 UNC Steel Impact Rated Drill Tap Bit does not quite match your expectations. We would value the opportunity to further investigate your feedback and provide you with support, so please feel free to reach out to us directly at socialmedia@milwaukeetool.com. Thank You
    Broke on the fourth hole drilled
    I was using this to drill and thread some holes in 1/8" aluminum for a personal project to mount on a tripod. For 3 holes this worked well enough, though it has a bad tendency to catch on the way out, so you have to be really careful not to injure your hand when the drill jerks. I always went as slowly as possible on the way out so as not to destroy the threads I'd just tapped. On the 4th hole I drilled, when it caught on the way out it just snapped the bit, which was pretty surprising given how slowly I was going. Very disappointed in the quality here. Great concept, poor execution. It might work better if the cutting edge only went in one direction on the tapping section.
    by
    Response from Social MediaMay 13, 2021
    Hello, while we are glad to hear that you are a fan of Milwaukee Tool, we would like to address your frustrations with the SHOCKWAVE 1/4 INC -20 SAE IMPACT DRILL TAP. We will follow up via email. Thank you - Will with Milwaukee Tool
      Snapped on the fourth usage
      For the first three holes I drilled in 1/8" aluminum this product worked pretty well, the hardest part always being the reverse; for some reason it's a cutting edge in both directions on the tapping segment, so it has a tendency to catch on the threads you just created rather than going back through smoothly like it should. If you aren't careful you could end up with an injured hand from the drill because it halts every time I used it. On the fourth hole I drilled, I was being careful and coming back out slowly when it suddenly caught and easily snapped the bit, leaving it lodged in my piece. I was able to extract it with some pliers and a lot of finagling, but really disappointed at how little value I got out of the bit. If you buy this, you might want to drill the hole, stop and remove the bit from your chuck, then twist it out by hand. Not sure if that would work better but it might be worth trying.
      by
      Response from Milwaukee ToolMay 25, 2021
      Hello, this is Will with Milwaukee Tool. Garrett, thank you for your review. I am sorry to hear about your frustrations with your Milwaukee SHOCKWAVE 1/4-20 UNC Steel Impact Rated Drill Tap Bit. We'd value the opportunity to learn more about your frustrations with your Milwaukee Tool, and to provide you with support. Please feel free to contact us directly at socialmedia@milwaukeetool.com. It will be our pleasure to provide support once we have received your correspondence. Thank You
        1 found this review helpful
        Broke off in 1st hole!
        Using this to tap in 1/8” mild tube steel railing. Broke off in railing and took forever to get out. Never again.
        by
        Response from Milwaukee ToolMar 10, 2021
        Hello, this is Natalie with Milwaukee Tool. Cole, thank you for taking the time to leave your review. I'm sorry to hear about your frustrations with your SHOCKWAVE 1/4-20 UNC Steel Impact Rated Drill Tap Bit. We would value the opportunity to learn more about your experience and provide you with support, so please reach out to us directly at socialmedia@milwaukeetool.com. Thank You
        • Recommended
        2 found this review helpful
        Drill/Tap bit worked out great, now my bike seat post clamp has a stronger stainless steel screw ...
        Drill/Tap bit worked out great, now my bike seat post clamp has a stronger stainless steel screw is the new hardware to keep the clamp closed and tight. Now the seat post will not drop down & move, left or right while I riding!!!
        by
        • Verified Purchase
        • Recommended
        I was excited to see this product as a time saver. It was marked as impact ready. The very first ...
        I was excited to see this product as a time saver. It was marked as impact ready. The very first use the product shattered leaving a big chunk wedged in the sheet metal creating more work. I was using Ridgid cordless and had to spend time removing the broken bit. See image of product was still in barely used condition.
        by
        • Verified Purchase
        1 found this review helpful
        One of the most unique Milwaukee tools for the metal fabricator or hobbyist. Drill Tap Bits tap a...
        One of the most unique Milwaukee tools for the metal fabricator or hobbyist. Drill Tap Bits tap and drill at the same time. The bits features 32 threads per inch and is intended for use in up to 1/4" metal. The drill and tap bits have laser etched sizes for easy size identification. The tap drill bit is designed for use in Impact Drivers & Drill Drivers.This one is 1/4" -20 thread and I find it the most useful in my garage. Very neat idea. Sold in sets or individually.
        by
        • Recommended
        I love Milwaukee Tools because of their high quality and overall durability. This drill tap bit a...
        I love Milwaukee Tools because of their high quality and overall durability. This drill tap bit and the other 2 I just got will be very welcome additions to my tool collection I you ave ever had to deal with stripped threading you know these babies are sort their weight in gold Everyone who turns a wrench really needs to have some of these in their tool kits.
        by
        • Recommended
        Having a drill bit and tap in the same product is a genius idea, and coupled with the quality of ...
        Having a drill bit and tap in the same product is a genius idea, and coupled with the quality of the SHOCKWAVE product line this is a well made, reasonably priced, and very useful addition to my DIY repair arsenal. I do not usually have to drill and tap metal, but recently have had the need to do so more than once and this has been extremely useful and a real time saver. The bit is extremely sharp and cuts thru aluminum like butter. The countersink feature is really nice as well. Did not come with instructions, but was easy to figure out; it did take me a bit to figure out it was 20 threads per inch (TPI), as I am relatively new to tap work. A nice addition to my DIY arsenal!
        by
        • Recommended
        An amazing trick! I used to buy drill and tap bolts when bolting things onto the steel supports o...
        An amazing trick! I used to buy drill and tap bolts when bolting things onto the steel supports of my carport, but now that I have this, I can use regular ¼” course thread bolts instead. I use my impact driver to power this bit. It drills through the steel and then the die threads bite in and form a threaded hole. I extract it carefully using a slow speed so that the threads are not harmed as the bit is removed. ¼” course thread bolts and rods thread easily into the holes produced. (There are 20 threads per inch.) The driving end is a standard ¼” hexagonal drive allowing quick changes. The size (1/4”) is laser etched on the shanks for quick identification. A nice touch. Made in China
        by
        • Recommended
        Showing 1-10 of 87 reviews