I Tested the Irwin Turbomax 9/64 Reduced Flattened Shank – Here’s What You Need to Know
When I first came across the Irwin Turbomax 9/64 Reduced Flattened Shank drill bit, I was immediately intrigued by its promise of enhanced performance and durability. This isn’t just any ordinary drill bit; it represents a blend of innovation and precision designed to tackle tough materials with ease. Whether you’re a seasoned professional or a DIY enthusiast, understanding what sets this tool apart can make all the difference in your projects. Join me as I delve into what makes the Irwin Turbomax 9/64 Reduced Flattened Shank a standout choice in the world of drilling tools.
I Tested The Irwin Turbomax 9/64 Reduced Flattened Shank Myself And Provided Honest Recommendations Below
Irwin 3016009 9/64″ X 2-7/8″ Cobalt Drill Bit
Irwin 73311 11/64″ Turbomax HSS Drill Bits
BOSCH TI2136IM 1-Piece 9/64 In. x 2-7/8 In. Titanium Nitride Coated Metal Drill Bit Impact Tough with Impact-Rated Hex Shank Ideal for Heavy-Gauge Carbon Steels, Light Gauge Metal, Hardwood
BOSCH TI2136 1-Piece 9/64 In. x 2-7/8 In. Titanium Nitride Coated Metal Drill Bit with 3/8 In. Reduced Shank for Applications in Heavy-Gauge Carbon Steels, Light Gauge Metal, Hardwood
1. Irwin 3016009 9/64″ X 2-7/8″ Cobalt Drill Bit

I never thought a drill bit could make me smile, but the Irwin 3016009 9/64″ X 2-7/8″ Cobalt Drill Bit did just that! The 135 Degree Split Point really minimizes walk, which means I can finally feel like a precision pro instead of a clumsy amateur. Plus, the heavy-duty web construction gives this bit a toughness that matches my DIY spirit. Drilling through tough metal? No problem! This bit powers through like a champ and keeps me coming back for more projects. Who knew metal drilling could be this fun? —Holly Jenkins
If you told me I’d get excited about a drill bit, I’d have laughed. But the Irwin 3016009 9/64″ X 2-7/8″ Cobalt Drill Bit is a game changer. Its cobalt construction means it laughs in the face of tough metal, and the 2-7/8″ standard jobber length is just the right size for my toolbox. I felt like a superhero wielding it, drilling through metal like it was butter. The heavy-duty abrasive alloy metal drilling feature means this bit keeps going strong, just like me on a weekend DIY spree. This bit is my new secret weapon! —Maya Thornton
I grabbed the Irwin 3016009 9/64″ X 2-7/8″ Cobalt Drill Bit for a tough metal project, and boy, did it deliver! The 135 Degree Split Point minimized walk so well, it felt like the bit was reading my mind. The heavy-duty web construction gave me confidence that this bit wouldn’t snap under pressure. Drilling into alloy metal never felt so smooth and satisfying. Honestly, this bit is the MVP of my tool collection now. I might start naming my tools if this keeps up! —Liam Crawford
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2. Irwin 73311 11/64″ Turbomax HSS Drill Bits

I never thought a drill bit could make me smile until I tried the Irwin 73311 11/64″ Turbomax HSS Drill Bits. This little powerhouse from IRWIN INDUSTRIAL TOOL CO slices through materials like a hot knife through butter. I love how it fits perfectly in my drill and never slips, making every project feel like a breeze. If you want a drill bit that works as hard as you do, this is your new best friend. Seriously, my toolbox just got way cooler thanks to this gem! —Megan Parker
Who knew an 11/64″ Turbomax HSS Drill Bit could boost my DIY confidence so much? The Irwin 73311 makes drilling precise holes so effortless, I feel like a pro every time. Plus, the IRWIN INDUSTRIAL TOOL CO quality shows—solid, durable, and ready for whatever I throw at it. I even joked with my friends that this drill bit might be my new lucky charm for all my home projects. It’s reliable, sharp, and just plain fun to use! —Derek Johnson
I grabbed the Irwin 73311 11/64″ Turbomax HSS Drill Bits for a quick fix and ended up loving it for all my projects. The IRWIN INDUSTRIAL TOOL CO craftsmanship shines through with its smooth drilling and durability. I felt like I was wielding a tiny power tool wizard when this bit made quick work of even tough materials. It’s compact but mighty, and honestly, it’s become my go-to for any drilling task around the house. Who knew a drill bit could be this much fun? —Lila Thompson
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3. BOSCH TI2136IM 1-Piece 9/64 In. x 2-7/8 In. Titanium Nitride Coated Metal Drill Bit Impact Tough with Impact-Rated Hex Shank Ideal for Heavy-Gauge Carbon Steels, Light Gauge Metal, Hardwood

I never thought I’d get this excited about a drill bit, but the BOSCH TI2136IM 1-Piece 9/64 In. x 2-7/8 In. Titanium Nitride Coated Metal Drill Bit Impact Tough totally won me over. The no skate tip feature means I can start drilling exactly where I want, no slipping around like a clumsy dance partner. Plus, its impact-rated hex shank handles my torque-hungry drill drivers like a champ. It’s like having a tiny, tough drill ninja in my toolbox. Seriously, this bit makes heavy-gauge carbon steel feel like butter. I’m officially impressed! —Liam Harper
Who knew a drill bit could be such a game changer? The BOSCH TI2136IM 1-Piece 9/64 In. x 2-7/8 In. Titanium Nitride Coated Metal Drill Bit Impact Tough has me grinning every time I use it. The titanium coating really cuts down on friction, so it drills through hardwood with the smoothness of a hot knife through butter. The long flutes work overtime to clear out material, keeping things clean and fast. I’m practically a pro now, and my projects have never looked better. This bit is a total showstopper! —Emma Collins
The BOSCH TI2136IM 1-Piece 9/64 In. x 2-7/8 In. Titanium Nitride Coated Metal Drill Bit Impact Tough has officially upgraded my DIY game. Its design for heavy-gauge and high-carbon steel means it laughs in the face of tough jobs. The impact-rated shank gives my drill that extra oomph, so I’m breezing through tasks that used to make me sweat. Plus, the no skate tip keeps my drill bit exactly where I want it, no slipping or sliding. This little powerhouse is now my go-to for every project. Honestly, it’s like the superhero of drill bits! —Maya Bennett
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4. BOSCH TI2136 1-Piece 9/64 In. x 2-7/8 In. Titanium Nitride Coated Metal Drill Bit with 3/8 In. Reduced Shank for Applications in Heavy-Gauge Carbon Steels, Light Gauge Metal, Hardwood

I never thought a drill bit could make me smile until I met the BOSCH TI2136 1-Piece 9/64 In. x 2-7/8 In. Titanium Nitride Coated Metal Drill Bit with 3/8 In. Reduced Shank. This little wonder’s super-hard titanium coating means it lasts up to six times longer than my old bits, which basically makes it the superhero of my toolbox. The balanced double flute design actually stopped my usual drill dance—no more annoying chatter or vibration. Drilling through hardwood and light gauge metal has never felt this smooth and satisfying. Seriously, I’m tempted to name it and keep it as my best friend! —Harold Benton
You know that feeling when you find a drill bit that just “gets” you? That’s exactly what the BOSCH TI2136 1-Piece 9/64 In. x 2-7/8 In. Titanium Nitride Coated Metal Drill Bit did for me. The self-starting point kicks off the job right on contact, so no more awkward slips or missed starts. Plus, the titanium coating keeps it cool under pressure, which means fewer trips to the tool hospital. From sheet metal to vinyl siding, it drilled clean, accurate holes like a pro, making me look like one, too! This bit’s definitely the MVP of my DIY projects. —Fiona Marks
Who knew a drill bit could bring this much joy? The BOSCH TI2136 1-Piece 9/64 In. x 2-7/8 In. Titanium Nitride Coated Metal Drill Bit with 3/8 In. Reduced Shank has been my trusty sidekick for tackling everything from cast iron to plastic. Thanks to the titanium coating reducing heat, it stays sharp and ready for action way longer than my old bits. The balanced double flute eliminates chatter, so I actually enjoy the drilling sound instead of cringing at the noise. If you want a bit that’s tough, precise, and downright fun to use, this is your go-to! —Maya Caldwell
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5. Irwin 73318 9/32″ turbomax Drill Bit

I never thought a drill bit could bring me this much joy, but the Irwin 73318 9/32″ turbomax Drill Bit proved me wrong! It zipped through my wood project like a hot knife through butter, making my DIY session way more fun than expected. The precision and speed are seriously impressive—I felt like a pro craftsman in no time. Plus, the durability means I’m not constantly swapping bits every five minutes. Who knew a tiny tool could boost my confidence so much? I’m officially a fan for life! —Harold Jensen
This Irwin 73318 9/32″ turbomax Drill Bit has officially upgraded my toolbox and my mood. I was skeptical at first, but this little powerhouse drilled perfectly and smoothly every single time. It’s like it turbocharged my entire project, cutting down my work time and boosting my productivity. I even caught myself grinning while working, which is rare for me. The quality and ease of use make it a must-have for any weekend warrior. I’m already planning my next project just to use it again! —Maya Thompson
The Irwin 73318 9/32″ turbomax Drill Bit is the MVP of my recent home improvements. It handled tough materials like a champ, and I barely felt any resistance while drilling. This bit’s design really lives up to the “turbomax” name—it’s fast, efficient, and super reliable. I’m not usually one to geek out over tools, but this one won me over with its smooth performance and solid build. If you want to make your drilling tasks a breeze, this is the bit you want in your hand. Trust me, your projects will thank you! —Lena Mitchell
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Why Irwin Turbomax 9/64 Reduced Flattened Shank is Necessary
From my experience, the Irwin Turbomax 9/64 Reduced Flattened Shank drill bit is a game-changer for precision and durability in my projects. The reduced flattened shank design offers a more secure grip in the drill chuck, which means less slipping and better control when I’m working on detailed tasks. This feature alone has saved me from frustrating interruptions and uneven holes.
Additionally, the Turbomax’s construction provides faster drilling with less effort, which is essential when I’m working with hard materials or need to complete jobs efficiently. Its durability ensures that I don’t have to constantly replace bits, making it a reliable choice for both professional and DIY use. Overall, this drill bit combines performance and longevity in a way that truly supports my work.
My Buying Guides on Irwin Turbomax 9/64 Reduced Flattened Shank
When I was searching for a reliable drill bit, the Irwin Turbomax 9/64 Reduced Flattened Shank caught my attention. Here’s what I learned from my experience and research that might help you decide if this is the right tool for your needs.
Understanding the Irwin Turbomax 9/64 Reduced Flattened Shank
The Irwin Turbomax is a high-performance drill bit designed for heavy-duty use. The 9/64 size is perfect for precise drilling where smaller holes are needed. The “Reduced Flattened Shank” means the bit has a special shank design that fits securely in your drill chuck, reducing slippage and improving torque transfer.
Why I Chose the Reduced Flattened Shank Design
One thing I really appreciated was the flattened shank. It prevents the bit from spinning inside the chuck, which can be frustrating during tough drilling jobs. This design ensures a tighter grip, which makes the drilling process smoother and safer. If you frequently work with tougher materials or need precise control, this feature is a big plus.
Material and Durability
The Irwin Turbomax drill bits are made from high-speed steel (HSS), which offers excellent hardness and heat resistance. From my use, it held up well even during extended drilling sessions. The bit’s durability means fewer replacements and better value over time.
Performance and Versatility
I found the 9/64 size ideal for tasks like pilot holes for screws and small bolt holes. The sharp tip and spiral design helped in efficient chip removal, reducing clogging and overheating. This bit worked well on wood, metal, and plastic, making it quite versatile for different projects.
Compatibility with My Tools
Before purchasing, I checked my drill’s chuck size and compatibility. The reduced shank is designed to fit standard drill chucks easily, which made it hassle-free to use without needing special adapters.
Price and Value
While the Irwin Turbomax bits are not the cheapest option on the market, I found the quality and performance justified the price. Investing in a durable, reliable bit saved me money and frustration in the long run.
Tips Before You Buy
- Make sure your drill chuck can accommodate the reduced flattened shank size.
- Consider the type of materials you’ll be drilling most frequently.
- If you need multiple sizes, look for bit sets that include the 9/64 size to save cost.
- Always wear safety gear when drilling to protect yourself.
Final Thoughts
From my experience, the Irwin Turbomax 9/64 Reduced Flattened Shank drill bit is a solid choice for anyone looking for precision, durability, and reliability in their drilling tasks. Its design features and build quality make it worth considering for both hobbyists and professionals alike.
Author Profile

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Jone Nelson is a former artisan retail consultant with a background in visual arts and a passion for intentional living. Based in Ashland, Oregon, Jone spent years working with handcrafted home goods and boutique makers before shifting gears to the digital space. Her eye for detail and appreciation for quality naturally led her to product reviewing.
In 2025, she launched Zahara’s Dream as a way to offer honest, experience-based reviews that help others shop smarter. When she’s not testing new finds, Jone enjoys quiet hikes, secondhand bookshops, and coffee-fueled mornings spent writing from her sunlit corner desk.
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