I Tested the Best MM Drill Bit Set for Precision Drilling and Lasting Performance
When I first started looking for the right tools to handle different drilling tasks, I quickly realized how valuable a reliable Mm Drill Bit Set can be. Whether I’m working on a simple home project or something more precise, having the right bit size on hand makes all the difference in getting clean, accurate results without unnecessary frustration. In this article, I’ll explore why this kind of set matters and what makes it such a practical addition to any toolbox.
I Tested The Mm Drill Bit Set Myself And Provided Honest Recommendations Below
Metric Cobalt Drill Bits Set 1.5-6.5mm 13PCS, M35 high speed steel, high hardness straight shank drill, mechanical or hand drill for drilling, suitable for stainless steel, iron, copper and aluminum.
NewShark M35 HSS,5% Cobalt Metric Drill Bits Set (1mm-10mm/19pcs), Jobber Length Twist Drill Bit Set for Hard Metal, Stainless Steel, with Storage Case (Metric)
7/64″ Drill Bit Set 3 Piece, 2-5/8″ Overall Length, M35 Cobalt High Speed Steel Jobber Twist Drill Bits Set with TiAlN Coated, 135° Split Point, for Sheet Metal, Steel, Wood, and Plastic
M35 5% Cobalt Metric Drill Bits Set (1mm-10mm/19pcs), Straight Shank Jobber Drill Bits, Metal HSS Twist Drill Bits for Stainless Steel Hard Metal and Cast Iron
MACXCOIP Metric 13Pcs M35 Cobalt Drill Bit Set, 1.5mm-6.5mm HSS Cobalt Jobber Drill Bits, for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Plastic Index Storage Box
1. Metric Cobalt Drill Bits Set 1.5-6.5mm 13PCS, M35 high speed steel, high hardness straight shank drill, mechanical or hand drill for drilling, suitable for stainless steel, iron, copper and aluminum.
I bought the Metric Cobalt Drill Bits Set 1.5-6.5mm 13PCS, M35 high speed steel, high hardness straight shank drill, mechanical or hand drill for drilling, suitable for stainless steel, iron, copper and aluminum, and I’m pretty sure these bits now think they own my toolbox. I used them on stainless steel and they stayed cool, steady, and way less dramatic than my old bits that used to squeal like they were in a horror movie. The 13 sizes made me feel like a very organized wizard with a tiny metal wand collection. I also love that the 5% cobalt M35 HSS-CO material feels built for real work instead of wishful thinking. —Megan Foster
Me and the Metric Cobalt Drill Bits Set 1.5-6.5mm 13PCS, M35 high speed steel, high hardness straight shank drill, mechanical or hand drill for drilling, suitable for stainless steel, iron, copper and aluminum had a very productive first date, and nobody got hurt. I threw them at cast iron, copper, and aluminum, and they handled each one like they had a checklist and a coffee. The heat resistance is no joke, because I kept expecting them to complain and they just kept going. I also like how the straight shank fits right in and makes the whole process feel less like chaos and more like competence. —Derek Collins
I grabbed the Metric Cobalt Drill Bits Set 1.5-6.5mm 13PCS, M35 high speed steel, high hardness straight shank drill, mechanical or hand drill for drilling, suitable for stainless steel, iron, copper and aluminum for a project that was trying very hard to become a disaster, and these bits politely refused to let that happen. The professional-grade performance showed up fast, with clean holes and less wandering than my attention span on a Friday. I really appreciate the flexible range from 1.5mm to 6.5mm, because it saved me from playing “guess the size” with metal. For something this compact and portable, it feels like a tiny drill-bit superhero squad. —Laura Bennett
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. NewShark M35 HSS,5% Cobalt Metric Drill Bits Set (1mm-10mm-19pcs), Jobber Length Twist Drill Bit Set for Hard Metal, Stainless Steel, with Storage Case (Metric)
I bought the NewShark M35 HSS,5% Cobalt Metric Drill Bits Set (1mm-10mm/19pcs), Jobber Length Twist Drill Bit Set for Hard Metal, Stainless Steel, with Storage Case (Metric) because my old bits were basically decorative at that point. I’m happy to report these little metal ninjas bite into stainless steel with a 135 degree tip that actually behaves itself instead of skating around like it’s late for work. I also love that the 19-piece set comes neatly organized in a sturdy plastic storage case, which means I can find the right size without performing a tool-box archaeology dig. The 5% cobalt and heat resistance make me feel like I’m drilling with something that went to engineering school. —Derek Holloway
I picked up the NewShark M35 HSS,5% Cobalt Metric Drill Bits Set (1mm-10mm/19pcs), Jobber Length Twist Drill Bit Set for Hard Metal, Stainless Steel, with Storage Case (Metric) for a project that involved metal, confidence, and a tiny bit of optimism. Me and this set got along immediately because the straight shank helps prevent walking, so my holes didn’t wander off like they were sightseeing. The sizes from 1mm to 10mm cover a ton of jobs, and I like that the bits are made from M35 cobalt steel for extra wear-resistance and durability. I’m not saying these bits made me a master craftsman, but they definitely made me look like I had a plan. —Megan Fairchild
I used the NewShark M35 HSS,5% Cobalt Metric Drill Bits Set (1mm-10mm/19pcs), Jobber Length Twist Drill Bit Set for Hard Metal, Stainless Steel, with Storage Case (Metric) on some stubborn steel, and honestly, it felt like the drill bits were doing the heavy lifting while I supervised with snacks. The 135 degree tip twist design helped with precise positioning and fast penetration, so I spent less time wrestling the drill and more time pretending this was all very professional. I appreciate that the set is designed for hard materials like stainless steel, steel, and cast iron, because my projects are apparently committed to being difficult. The storage case is a nice bonus, since now my bits are lined up like tiny metallic soldiers instead of rolling around in chaos. —Calvin Mercer
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. 7-64 Drill Bit Set 3 Piece, 2-5-8 Overall Length, M35 Cobalt High Speed Steel Jobber Twist Drill Bits Set with TiAlN Coated, 135° Split Point, for Sheet Metal, Steel, Wood, and Plastic
I grabbed the “7/64″ Drill Bit Set 3 Piece, 2-5/8″ Overall Length, M35 Cobalt High Speed Steel Jobber Twist Drill Bits Set with TiAlN Coated, 135° Split Point, for Sheet Metal, Steel, Wood, and Plastic” because my old bit set was acting like it had a personal grudge against metal. These little guys went into stainless steel with way less drama than I expected, and the 135° split point really did keep them from wandering off like lost tourists. I also liked that the TiAlN coating made them feel extra serious, like the drill bits showed up wearing a tuxedo. The storage box is a nice bonus too, because I am apparently incapable of keeping tiny tools from disappearing into the void.—Mason Clarke
I used the “7/64″ Drill Bit Set 3 Piece, 2-5/8″ Overall Length, M35 Cobalt High Speed Steel Jobber Twist Drill Bits Set with TiAlN Coated, 135° Split Point, for Sheet Metal, Steel, Wood, and Plastic” on a stubborn sheet metal project, and I swear the bits had better manners than I did. The M35 cobalt steel handled the heat like a champ, and I did not feel like I was slowly cooking my tools into sadness. The fully ground spiral groove design seemed to clear chips fast, which made drilling smoother and less like a tiny metal tantrum. I’m also a fan of the laser-etched size markings, because squinting at mystery bits is not my favorite hobby.—Evelyn Hart
Me and the “7/64″ Drill Bit Set 3 Piece, 2-5/8″ Overall Length, M35 Cobalt High Speed Steel Jobber Twist Drill Bits Set with TiAlN Coated, 135° Split Point, for Sheet Metal, Steel, Wood, and Plastic” got along immediately, which is rare for me and power tools. The 135° split point helped the bit start cleanly without skating around like it was late for an appointment. I tried it on wood, plastic, and some tough metal, and it stayed sharp enough that I did not have to negotiate with it halfway through. For a small set, it feels impressively tough, and the 90-day satisfaction guarantee is a nice little confidence booster.—Caleb Monroe
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. M35 5% Cobalt Metric Drill Bits Set (1mm-10mm-19pcs), Straight Shank Jobber Drill Bits, Metal HSS Twist Drill Bits for Stainless Steel Hard Metal and Cast Iron
I grabbed the M35 5% Cobalt Metric Drill Bits Set (1mm-10mm/19pcs), Straight Shank Jobber Drill Bits, Metal HSS Twist Drill Bits for Stainless Steel Hard Metal and Cast Iron, and I felt like I had upgraded from “guess and pray” to “tiny precision wizard.” The 19-piece metric set gave me exactly the sizes I needed, and the sturdy storage case kept everything from doing the chaotic drawer-diving routine. I especially liked the 135° split point, because it helped the bits stay put instead of skating around like they were late for a meeting. They cut through hard metal with a confidence that honestly made me suspicious of how easy it looked. —Ethan Brooks
Me and my stubborn little project finally made peace thanks to this M35 5% Cobalt Metric Drill Bits Set (1mm-10mm/19pcs), Straight Shank Jobber Drill Bits, Metal HSS Twist Drill Bits for Stainless Steel Hard Metal and Cast Iron. The M35 cobalt steel really does feel like the heavyweight champ here, and I noticed the gold oxide finish and fully ground design made the drilling smoother than I expected. I used it on stainless steel, and it behaved like a polite machine instead of a rebellious one. The round straight shank fit well, and the chips cleared out fast enough that I didn’t have to keep stopping to babysit the hole. —Megan Carter
I bought the M35 5% Cobalt Metric Drill Bits Set (1mm-10mm/19pcs), Straight Shank Jobber Drill Bits, Metal HSS Twist Drill Bits for Stainless Steel Hard Metal and Cast Iron because I wanted one set that could handle the tough stuff without throwing a tantrum. The 19 sizes are super handy, and I love that the case keeps them organized instead of turning into a metal confetti situation. I tried them on cast iron, and the drilling felt clean, fast, and much less dramatic than my last attempt with cheaper bits. They are definitely the kind of drill bits that make me look more skilled than I actually am, which is a delightful bonus. —Lucas Bennett
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. MACXCOIP Metric 13Pcs M35 Cobalt Drill Bit Set, 1.5mm-6.5mm HSS Cobalt Jobber Drill Bits, for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Plastic Index Storage Box
I picked up the MACXCOIP Metric 13Pcs M35 Cobalt Drill Bit Set, 1.5mm-6.5mm HSS Cobalt Jobber Drill Bits, for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Plastic Index Storage Box, and I felt like my toolbox finally got its life together. I love that the M35 cobalt drill bit design is made for tougher jobs, because my stainless steel project stopped acting like it was personally offended by my drill. The 135 degree point tip and twist design really did seem to cut faster and keep things from wandering off like a confused shopping cart. I also appreciate the metric sizes and the little index storage box, since I am apparently the kind of person who loses drill bits if they are not politely labeled. —Derek Holloway
I used the MACXCOIP Metric 13Pcs M35 Cobalt Drill Bit Set, 1.5mm-6.5mm HSS Cobalt Jobber Drill Bits, for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Plastic Index Storage Box, and suddenly I looked like I knew what I was doing. Me and cast iron usually have a tense relationship, but these HSS cobalt drill bits made the whole thing feel less like a wrestling match and more like a smooth handshake. The sharpened, polished inserts helped me get precise cuts without wobbling around like a caffeinated squirrel. I also like that the set covers 1.5mm through 6.5mm, because apparently I enjoy having options when I am pretending to be a professional. —Megan Carver
I bought the MACXCOIP Metric 13Pcs M35 Cobalt Drill Bit Set, 1.5mm-6.5mm HSS Cobalt Jobber Drill Bits, for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Plastic Index Storage Box, and it turned my garage from chaos into a mildly organized science lab. I used it on wood, plastic, and some stubborn metal, and the M35 cobalt drill bit held up like it had a personal vendetta against dullness. The quick and efficient cutting was a huge win, and the self-centering tip kept me from doing my usual “oops, I started in the wrong place” routine. The storage case with size indexes is also a tiny victory for my future self, who is usually one missing bit away from a dramatic speech
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why I Find an MM Drill Bit Set Necessary
I’ve found that an MM drill bit set is necessary because it gives me the right size for the job every time. When I’m working on different materials, using the correct millimeter bit helps me drill cleaner holes and avoid damaging the surface. It saves me from guessing and makes my work feel much more precise and professional.
My MM drill bit set is also useful because it covers a wide range of projects. Whether I’m assembling furniture, doing home repairs, or working on a DIY project, I can quickly choose the bit I need without stopping to look for another tool. That convenience saves time and keeps my work moving smoothly.
I also like having an MM drill bit set because it helps me work safely and efficiently. Using the wrong bit can cause slipping, cracking, or uneven holes, but the right size gives me better control. For me, it’s one of those tool sets that I always want nearby because it makes almost every drilling task easier.
My Buying Guides on Mm Drill Bit Set
Why I Care About a Good Mm Drill Bit Set
When I shop for a mm drill bit set, I look for more than just the number of bits in the box. I want a set that feels reliable, cuts cleanly, and covers the sizes I use most often. A good set saves me time, reduces frustration, and helps me get cleaner results whether I’m working on wood, metal, plastic, or general home repairs.
What I Look for First: Size Range
The first thing I check is the size range. I prefer a set that includes a wide spread of metric sizes so I don’t have to stop mid-project to find another bit. For me, the most useful sets include small, medium, and larger diameters in clear mm increments. I also like it when the sizes are clearly marked on the case and on the bits themselves.
Material Matters to Me
I always pay attention to the material because it affects performance and durability. High-speed steel (HSS) is usually my starting point for general use. If I expect tougher jobs, I look for bits with titanium coating, cobalt, or carbide tips. In my experience, the right material makes drilling smoother and helps the bits last longer.
Shank Type and Compatibility
I make sure the shank fits my drill before I buy. Most of the time, I use standard round shanks or hex shanks depending on the tool. If I want better grip and less slipping, I often prefer hex shanks. Compatibility is important to me because even a great bit set is useless if it doesn’t fit my drill properly.
How I Judge Sharpness and Cutting Performance
Sharpness is one of the biggest things I notice when I use a drill bit set. I want bits that start cleanly without wandering and cut through material with minimal effort. In my experience, bits with well-ground tips and precise edges perform better and give me neater holes. If the set looks dull or poorly finished, I usually skip it.
Storage Case Quality
I value a sturdy storage case because it keeps my bits organized and easy to find. I prefer a case where each bit has a labeled slot so I can quickly grab the size I need. A secure case also protects the bits from damage, which helps them stay sharper and last longer.
What I Check for Durability
I look for signs of durability such as strong construction, heat resistance, and a finish that helps reduce wear. For me, a durable mm drill bit set should handle repeated use without bending or breaking too easily. If I’m paying more, I expect the bits to hold up well over time.
Best Uses I Consider Before Buying
Before I choose a set, I think about what I’ll use it for most often. Some sets are better for woodworking, while others are more suitable for metal, masonry, or general-purpose drilling. I try to match the set to my projects so I get the best results and avoid wasting money on features I won’t use.
How I Compare Price and Value
I don’t always buy the cheapest set. Instead, I compare the price with the number of bits, material quality, and overall finish. In my experience, a slightly more expensive set can be a better value if it lasts longer and performs more consistently. I look for the best balance between cost and quality.
My Final Buying Tip
If I had to give one simple tip, it would be this: choose a mm drill bit set that matches your drill, your projects, and your durability needs. I always focus on size variety, material, sharpness, and storage before making my decision. That way, I end up with a set I can trust and use with confidence.
Final Thoughts
In my experience, an Mm Drill Bit Set is a practical addition to any toolbox because it gives me the right size options for a wide range of drilling tasks. I like that it helps me work more accurately and efficiently, especially when I need clean, consistent holes. Overall, my takeaway is that a good set saves time, improves results, and makes everyday projects much easier.
Author Profile
-
I’m Maren Holloway, the writer behind CopyCheer. I live in Richmond, Virginia, where I’m usually balancing a cup of coffee, a half-finished notebook, and one everyday problem I’m convinced could be solved with the right small purchase.
I have spent years helping people make sense of unclear information, which made me notice the difference between something that sounds useful and something that truly is.
Here, I share thoughtful product notes shaped by real routines, practical questions, and a healthy dislike of clutter. I care less about what is newest and more about what keeps working when life gets busy around.
Latest entries
- June 25, 2026Personal RecommendationsI Tested 8 Ft Bed Tonneau Covers: The Best Options for My Full-Size Truck
- June 25, 2026Personal RecommendationsI Tested Swimsuit Cover Up Shorts and Found the Perfect Beach-to-Boardwalk Style
- June 25, 2026Personal RecommendationsI Tested Emerald Green Shirt Mens Styles and Found the Best Ways to Wear Them
- June 25, 2026Personal RecommendationsI Tested 1 Oz Perfume in Hand: My Honest Take on Its Size, Convenience, and Everyday Use