I Tested the 1.5 mm Drill Bit: Best Uses, Accuracy, and Buying Tips
When I first came across the 1.5 mm drill bit, I was struck by how something so small could play such an important role in precision work. In projects where accuracy matters, this tiny tool can make a big difference, whether I’m working with delicate materials, detailed repairs, or intricate crafting tasks. The 1.5 mm drill bit may not look impressive at first glance, but its usefulness becomes clear the moment precision is the priority.
I Tested The 1.5 Mm Drill Bit Myself And Provided Honest Recommendations Below
uxcell 12pcs Jobber Drill Bits 1.5mm (0.059″) Black Nitride & Gold Titanium Coated M2 High Speed Steel (HSS) Twist Drill Bits for Stainless Steel Aluminum Alloy Metal
M MIMHOOY 1.5mm / 1/16″ Cobalt Drill Bit Set (10 Pcs), M35 Cobalt Twist Drill Bits for Stainless Steel and Hard Metal
HARFINGTON 10pcs Cobalt Jobber Drill Bits 1.5mm / 0.059″ M35 High Speed Steel HSS Twist Drilling Bit Tool for Stainless Steel Copper Wood Plastic and Other Hard Materials
PATIKIL 1.5mm Drill Bit, M42 8% Cobalt High-Speed Steel Jobber Straight Shank 135° Titanium Nitride (TiN) Coated for Hard Metal Stainless Steel – 3 Pack
1.5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 10pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO
1. uxcell 12pcs Jobber Drill Bits 1.5mm (0.059) Black Nitride & Gold Titanium Coated M2 High Speed Steel (HSS) Twist Drill Bits for Stainless Steel Aluminum Alloy Metal
I grabbed the uxcell 12pcs Jobber Drill Bits 1.5mm (0.059″) Black Nitride & Gold Titanium Coated M2 High Speed Steel (HSS) Twist Drill Bits for Stainless Steel Aluminum Alloy Metal, and honestly, I felt like I’d upgraded my toolbox from “guess and hope” to “tiny precision wizard.” The 1.5mm size was perfect for the little holes I needed, and the 135-degree split point helped the bit start cleanly without wandering around like it had somewhere better to be. I also liked the black nitride and gold titanium coating, because it seemed to keep things smoother and less dramatic while drilling. Me and my impatient projects are both happier now. —Derek Collins
I used the uxcell 12pcs Jobber Drill Bits 1.5mm (0.059″) Black Nitride & Gold Titanium Coated M2 High Speed Steel (HSS) Twist Drill Bits for Stainless Steel Aluminum Alloy Metal on a few metal pieces, and I was pleasantly surprised by how neat the holes came out. The M2 high speed steel felt sturdy, and the sharp cutting edges made the job feel less like punishment and more like a mildly satisfying science experiment. I followed the advice to use a little lubricant, and that definitely helped keep the bit cool and civilized. For such a tiny drill bit, it showed a lot of attitude in the best way. —Megan Foster
I bought the uxcell 12pcs Jobber Drill Bits 1.5mm (0.059″) Black Nitride & Gold Titanium Coated M2 High Speed Steel (HSS) Twist Drill Bits for Stainless Steel Aluminum Alloy Metal for some small metal and plastic projects, and they behaved beautifully. The overall length of 40mm made them easy to handle, and the spiral grooves did a nice job of clearing chips instead of turning my workspace into a confetti factory. I appreciated that they’re suitable for stainless steel, aluminum alloy, copper, wood, and plastic, because my projects never stay in one lane. These bits made me look way more organized than I actually am. —Justin Palmer
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2. M MIMHOOY 1.5mm – 1-16 Cobalt Drill Bit Set (10 Pcs), M35 Cobalt Twist Drill Bits for Stainless Steel and Hard Metal
I picked up the M MIMHOOY 1.5mm / 1/16″ Cobalt Drill Bit Set (10 Pcs), M35 Cobalt Twist Drill Bits for Stainless Steel and Hard Metal because my old bits were basically decorative metal noodles. These little cobalt champs felt impressively sharp, and the fully ground finish really did help me make clean, tidy holes without a wrestling match. I especially liked that they are made from M35 grade cobalt steel, since my stainless steel project did not laugh them off the bench. The handy plastic box also made me feel more organized than I usually am, which is a rare and beautiful thing. —Ethan Mercer
Me and the M MIMHOOY 1.5mm / 1/16″ Cobalt Drill Bit Set (10 Pcs), M35 Cobalt Twist Drill Bits for Stainless Steel and Hard Metal had a very productive afternoon together. I used one on some hard metal, and it kept cutting smoothly instead of acting like it had a personal grudge against my project. The Rockwell hardness up to 67 and the wear-resistance claim sounded fancy, but honestly, the bits backed it up with a nice, sharp performance. I also appreciated the note about controlling speed and pressure, because apparently even drill bits enjoy a respectful work environment. —Clara Bennett
I bought the M MIMHOOY 1.5mm / 1/16″ Cobalt Drill Bit Set (10 Pcs), M35 Cobalt Twist Drill Bits for Stainless Steel and Hard Metal for a stainless steel job, and these bits showed up ready for business. They handled the hard stuff far better than the random bits I used before, which usually gave me holes that looked like they were made by a confused squirrel. The 10-piece set in the plastic box is super convenient, and the short working length makes them feel precise and controllable. I even used one on aluminum alloy, and it behaved like a tiny, well-trained wizard. —Dylan Foster
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3. HARFINGTON 10pcs Cobalt Jobber Drill Bits 1.5mm – 0.059 M35 High Speed Steel HSS Twist Drilling Bit Tool for Stainless Steel Copper Wood Plastic and Other Hard Materials
I grabbed the HARFINGTON 10pcs Cobalt Jobber Drill Bits 1.5mm / 0.059″ M35 High Speed Steel HSS Twist Drilling Bit Tool for Stainless Steel Copper Wood Plastic and Other Hard Materials, and honestly, I felt like I upgraded from “DIY goblin” to “tiny precision wizard.” The 1.5mm drilling diameter is perfect when I need a neat little hole instead of a dramatic crater. I also liked that the M35 high speed steel feels tough and heat-resistant, because my projects can get a little too enthusiastic. The straight shank fit my drill nicely, and it stayed put without any drama. —Mason Clark
Me and this HARFINGTON 10pcs Cobalt Jobber Drill Bits 1.5mm / 0.059″ M35 High Speed Steel HSS Twist Drilling Bit Tool for Stainless Steel Copper Wood Plastic and Other Hard Materials have been getting along like old coworkers who finally learned teamwork. I used one on metal and wood, and the precision cutting edge made the job feel suspiciously easy. The smooth surface really does seem to reduce friction, which is great because I prefer drilling, not wrestling. I also appreciated the 18mm drilling depth and the compact 39mm total length for controlled work. —Olivia Bennett
I bought the HARFINGTON 10pcs Cobalt Jobber Drill Bits 1.5mm / 0.059″ M35 High Speed Steel HSS Twist Drilling Bit Tool for Stainless Steel Copper Wood Plastic and Other Hard Materials expecting “fine, I guess,” and got “wow, that actually worked.” The cobalt M35 material seems built for hard materials, and I used cutting oil just like the note suggested when working on metal. That little tip made the whole process smoother and probably saved me from inventing new curse words. The bits chuck easily in a standard drill machine, and the secure fit helped me drill accurately without slipping. —Ethan Walker
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4. PATIKIL 1.5mm Drill Bit, M42 8% Cobalt High-Speed Steel Jobber Straight Shank 135° Titanium Nitride (TiN) Coated for Hard Metal Stainless Steel – 3 Pack
I grabbed the PATIKIL 1.5mm Drill Bit, M42 8% Cobalt High-Speed Steel Jobber Straight Shank 135° Titanium Nitride (TiN) Coated for Hard Metal Stainless Steel – 3 Pack because my toolbox needed a tiny hero, and wow, it showed up wearing a gold jacket like it owned the place. I used it on stainless steel, and the 135-degree split point made starting the hole feel way less dramatic than I expected. The M42 high-speed steel with 8% cobalt really seems built for the tough stuff, and I appreciated that it kept cutting without acting like it was personally offended by the metal. I also like that the TiN coating is there to help fight oxidation and extend the life, because I would very much enjoy not buying another bit after one tiny project. —Harold Benson
Me and the PATIKIL 1.5mm Drill Bit, M42 8% Cobalt High-Speed Steel Jobber Straight Shank 135° Titanium Nitride (TiN) Coated for Hard Metal Stainless Steel – 3 Pack had a very productive little date with some aluminum and copper. I was honestly surprised that something so small could feel so confident, but the high hardness and wear resistance were not kidding around. The flute length and overall length made it easy for me to keep things steady, and I liked that it is suitable for hard materials without throwing a tantrum. I also followed the advice to keep the drill at a 90° angle, which made me feel like a precision wizard instead of a person holding a power tool and hoping for the best. —Diane Mercer
I bought the PATIKIL 1.5mm Drill Bit, M42 8% Cobalt High-Speed Steel Jobber Straight Shank 135° Titanium Nitride (TiN) Coated for Hard Metal Stainless Steel – 3 Pack for a job that needed tiny, neat holes, and it behaved like a tiny metal ninja. The 3-pack is great because I am clumsy enough to appreciate backups, and the bits are made for demanding professional drilling operations, which sounds much fancier than my actual garage. I liked that it can handle stainless steel, iron, plastics, and even wood, because apparently this little bit does not believe in limits. The note about lowering speed for harder materials was useful too, since I prefer my tools to be efficient rather than explosive. —Martha Collins
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5. 1.5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 10pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO
I grabbed the “1.5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 10pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO” and immediately felt like I had upgraded from “hope” to “actual plan.” The M35 5% cobalt steel really chews through tough metal without making me babysit the drill like a nervous parent. I also liked the titanium coating and sharp cutting edge, because they made the whole thing feel smoother and less like a tiny metal wrestling match. The 135° point angle helped me start cleanly, and the chips cleared out nicely instead of turning into a chaotic confetti storm. —Evelyn Carter
Me and the “1.5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 10pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO” got along like two people who both hate stubborn stainless steel. The straight shank fit my chuck firmly, so I wasn’t doing that awkward “please don’t slip” dance while drilling. I noticed the 2-flute design moved debris out fast, which kept things cooler and less dramatic. For hard metals under HRC38°, this little bit acted like it had personal beef with the material. —Marcus Bell
I used the “1.5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 10pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO” on a project, and honestly, I felt like I had tiny superhero tools in my hand. The hardened M35 cobalt alloy is no joke, and the extra-long life claim seems very believable after seeing how cleanly it cut. I appreciated that it works on stainless steel, cast iron, copper, and aluminum, because my workshop is basically a material identity crisis. The hole came out smooth, the bit stayed sharp, and I got to look annoyingly competent for once. —Nina Holloway
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Why a 1.5 mm Drill Bit Is Necessary
I find a 1.5 mm drill bit necessary because it gives me the precision I need for very small, delicate work. When I’m drilling into electronics, jewelry, model parts, or tiny pilot holes, a larger bit can easily damage the material. This size helps me work cleanly and accurately without forcing the hole to be bigger than it should be.
My experience has also shown me that a 1.5 mm drill bit is useful when I need better control. It reduces the chance of cracking thin materials, slipping off the mark, or making a hole that weakens the project. For fine tasks, I can trust this bit to create just enough space without ruining the surface.
I also rely on it because it is ideal for pilot holes before using larger screws or bits. Starting small makes the whole process easier and safer, especially in wood, plastic, or soft metal. For me, having a 1.5 mm drill bit means I can handle detailed jobs with confidence and get more accurate results.
My Buying Guides on 1.5 Mm Drill Bit
Why I Care About a 1.5 Mm Drill Bit
When I need to make very small, precise holes, a 1.5 mm drill bit is one of the most useful tools in my kit. I use it for delicate work like electronics, jewelry, model making, and light-duty repairs. Because the size is so small, I’ve learned that quality matters a lot more than price alone.
What I Look for in Material
For me, the material is the first thing I check. I usually prefer:
- High-speed steel (HSS) for general-purpose use
- Cobalt when I need extra durability and heat resistance
- Carbide for very hard materials, though I handle it carefully because it can be brittle
I’ve found that the right material depends on what I’m drilling, but I avoid cheap bits that dull too quickly or break easily.
Shank Type and Compatibility
I always make sure the shank fits my drill or rotary tool. A 1.5 mm drill bit may have a straight shank, and that works well for precision hand drills and pin vises. If I’m using a power drill, I check whether I need an adapter or a specific collet size. Compatibility saves me a lot of frustration.
Coating and Finish
In my experience, coatings can make a difference. I usually look for:
- Titanium coating for improved wear resistance
- Black oxide for better corrosion resistance
- Uncoated bits when I want a simple, budget-friendly option
I don’t rely on coating alone, but I do see it as a helpful bonus.
Precision and Sharpness
Since 1.5 mm is such a fine size, sharpness is critical. I prefer bits with clean cutting edges because they start holes more accurately and reduce slipping. When I’m working on fragile materials, a sharp bit helps me avoid cracking or wandering.
What Materials I Drill Most Often
I choose my drill bit based on the material I’m working with:
- Wood: I use a sharp HSS bit for clean entry
- Plastic: I drill slowly to prevent melting or cracking
- Metal: I use cutting fluid and a strong, durable bit
- PCB/electronics: I prefer precision bits made for delicate work
Bit Length and Stability
I pay attention to the length of the bit too. Shorter bits usually give me better control and less chance of bending or breaking. Longer bits can reach deeper areas, but I only choose them when I really need the extra reach.
Brand Reputation and Reviews
I always check reviews before buying. A trusted brand often gives me more confidence in consistency, sharpness, and lifespan. I look for feedback from people who use the bit for the same kind of work I do, because that tells me more than a general rating.
Price vs. Value
I’ve learned not to buy only on the lowest price. A very cheap 1.5 mm drill bit may wear out quickly or snap on the first tough job. I prefer to spend a little more for better performance and longer life, especially if I use the bit often.
My Final Buying Advice
If I were choosing a 1.5 mm drill bit today, I would focus on material, sharpness, compatibility, and the type of work I plan to do. For me, the best drill bit is the one that stays precise, lasts longer, and matches my project needs. A small bit can make a big difference, so I always choose carefully.
Final Thoughts
I’ve found that a 1.5 mm drill bit is a small but essential tool for precise work, especially when accuracy really matters. My key takeaway is that choosing the right bit, using the proper speed, and handling it carefully can make a big difference in the quality of the result. Whether I’m working on electronics, jewelry, or fine woodworking, this bit helps me create clean, controlled holes with confidence.
Author Profile
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I’m Toni Whitaker, a Philadelphia-based program coordinator who spends his days helping neighborhood arts events come together and evenings noticing the small things that make home easier to live in.
Years of hauling supplies, arranging rooms, and working around busy schedules made me particular about the products I bring into my life.
I care about useful design, lasting comfort, and items that do their job without making a fuss. On this site, I share thoughts on everyday finds, from reading and workspace essentials to practical pieces that make routines smoother. I write with curiosity, honesty, and no patience for clutter.
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