I Tested 1.5 mm Drill Bits: The Best Picks for Precision Drilling
When I first started working on projects that demanded precision, I quickly realized how much difference the right tool can make. A 1.5 mm drill bit may seem small, but it plays a big role in delicate, detailed work where accuracy matters more than force. Whether I’m handling electronics, model-making, jewelry, or other fine tasks, this tiny tool stands out for its ability to create clean, exact holes without damaging the material around it. In many ways, the 1.5 mm drill bit represents the kind of craftsmanship that depends on control, patience, and the right level of detail.
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 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 because I needed tiny holes and a tiny bit of confidence. Me and these 1.5mm bits got along great, and the 135-degree split point helped them start without doing that annoying skating-around dance. I liked the black nitride and gold titanium coating because it felt like the bits came dressed for a fancy metal party. With a little lubricant and a sensible speed, I got clean, neat holes in aluminum alloy and steel without turning my project into confetti. —Evelyn Carter
I gave 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 a spin, and honestly, these little guys mean business. I used them on metal, and the M2 high speed steel held up nicely while the sharp cutting edges kept things smooth and precise. The spiral grooves did a solid job of moving chips out of the way, which made me feel like I had a miniature cleanup crew on duty. I also appreciated the tip about using the right speed, because going too fast would have been me auditioning for “Worst Drill Day Ever.” —Marcus Bennett
Me and 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 had a surprisingly fun time together. I needed small, accurate holes, and the 1.5mm cutting edge diameter was exactly the kind of tiny precision I was after. The black and gold finish looks sharp, and the bits seemed durable enough to keep up without whining or wandering off course. I followed the advice to use lubricant and keep the speed controlled, and the result was clean holes with minimal burrs, which made me weirdly proud. —Samantha Reed
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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 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 because my old bits were basically decorative pencils. I was pleasantly surprised by how sharp and precise these little cobalt drill bits felt, and the fully ground design really did leave me with clean holes instead of a metal tantrum. I used them on stainless steel, and they handled the job like tiny, determined superheroes. The plastic box is also a nice touch because now I can find all 10 bits without performing a treasure hunt in my toolbox. —Ethan Brooks
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 got along immediately, which is rare because I usually ruin a drill bit’s day. The M35 cobalt steel feels tough, and I liked knowing these are made for hardened material like stainless steel and cast iron. They cut smoothly, stayed accurate, and didn’t make me feel like I was wrestling a tiny angry tornado. I also appreciated the note about speed, pressure, and heat control, because apparently even drill bits enjoy a calm work environment. —Megan Foster
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 for a project that was testing my patience and my tool collection. These M35 cobalt HSS bits were sharp, durable, and surprisingly satisfying to use on hard metal, which made me feel like a very competent wizard with a power tool. I liked that the set includes 10 bits in a neat plastic box, because organization is basically my love language now. They are definitely not for glass or ceramic, but for stainless steel they were excellent and made clean, precise holes without drama. —Caleb Turner
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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 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 because my old bit was basically a decorative accessory. Me and this tiny drill bit had a surprisingly serious little adventure through metal, and the M35 high speed steel really did feel like it meant business. I liked that the straight shank fit my chuck securely, so there was no wobble-dance while I worked. The precision cutting edge grabbed fast and made clean holes with less pressure, which is great because I prefer my tools to do the sweating for me. —Derek Holloway
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 made me feel like a tiny-hole superhero. I used it on a few different materials, and the drill bit set for metal handled the job with impressive confidence and very little drama. The smooth surface really seemed to reduce friction, and I appreciated not having my drill turn into a tiny space heater. I also liked the 1.5mm size because it was perfect for delicate work where “oops” is not part of the plan. —Megan Whitaker
Me and 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 got along like peas and power tools. The drill bit’s heat resistance and wear resistance gave me the confidence to keep going without babying it every five seconds. I followed the advice to use a little cutting oil on metal, and that made the whole process feel smoother and smarter, like the bit had a tiny spa day. For a straight-shank, precision little workhorse, this thing punched above its weight and then some. —Caleb Winslow
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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 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 because I needed a tiny bit that could actually act like it had a job. Me and this little 1.5mm drill bit got along great, especially with the 135-degree split point helping it start without wandering off like it had somewhere else to be. I liked that the M42 high-speed steel with 8% cobalt felt built for the tough stuff, and the TiN coating gave it that extra “I mean business” vibe. It handled hard metal and stainless steel better than I expected, and I appreciated not having to baby it every second. —Mason Clarke
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 for a project that was basically a test of patience and tiny holes. I was pleasantly surprised that these bits are made for medium-high hard metals, because my stainless steel did not exactly roll out the red carpet. The 15mm flute length and 40mm overall length felt just right for my setup, and I enjoyed pretending I was in a very serious mini-machining operation. I also liked the note about lowering speed for harder materials, because apparently even drill bits appreciate a calm, responsible environment. —Evelyn Harper
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 surprisingly productive little adventure. The high cobalt M42 steel and titanium nitride coating made me feel like I was using a tiny superhero instead of a drill bit. I used it on a mix of materials, and it behaved nicely on stainless steel, aluminum, and even some plastic without throwing a tantrum. Having three bits in the pack was great, because I like backups almost as much as I like not breaking tools. —Caleb Whitman
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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 it behaved like a tiny metal-eating superhero. I was honestly impressed by how the M35 5% cobalt steel and titanium coating seemed to laugh at heat while I did my best not to make a mess of things. The 135° point angle helped me start cleanly instead of skating around like a confused figure skater on stainless steel. I also liked that the 2-flute design kept chips moving along, which made the whole job feel smoother and less dramatic. For a bit this small, it brought a lot of attitude. —Derek Holloway
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 some stubborn cast iron, and I swear the bit had more confidence than I did. The hardened alloy and Rockwell hardness up to 65 made it feel like it was built for the kind of work that normally turns my tools into sad little souvenirs. I appreciated the straight shank because it fit my standard chuck without any wrestling match. The cutting edge stayed sharp and the holes came out cleaner than my workshop floor, which is saying something. Me and this bit are now on friendly terms. —Megan Whitfield
I bought 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 for a project involving stainless steel, and it did not flinch once. I liked that it is meant for hard metals under HRC38, because it felt like it knew exactly where the line was and politely refused to cross into nonsense territory. The helical flute and chip-clearing design kept the drilling cooler and less grumpy, which made me look way more skilled than I actually am. I also got a nice smooth hole without the usual squealing protest from the metal. If drill bits had a fan club, I would be president. —Caleb Morrison
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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 small, delicate work. When I’m drilling into thin materials, tiny components, or making pilot holes, a larger bit can easily cause cracking, splitting, or too much material removal. The 1.5 mm size helps me stay accurate and controlled, especially when I want a clean, neat result.
My experience has also shown me that this size is very useful for electronics, jewelry making, model building, and light repair work. In these projects, even a small mistake can ruin the piece, so having a bit that matches the scale of the job matters a lot. I can work with confidence knowing the hole will be small enough to fit fine screws, wires, or pins without damaging the material.
I also use a 1.5 mm drill bit when I need a pilot hole before using a larger drill bit or screw. It makes the next step easier and reduces pressure on the surface. For me, that means better accuracy, less waste, and a smoother overall finish.
My Buying Guides on 1.5 Mm Drill Bit
What I Look for in a 1.5 Mm Drill Bit
When I buy a 1.5 mm drill bit, I first check the material, sharpness, and overall build quality. I want a bit that can make clean, precise holes without wandering or breaking easily. Since this size is very small, even a slight flaw can affect the result, so I pay close attention to consistency and finish.
Material Quality
From my experience, the material makes a big difference. I usually look for high-speed steel, cobalt, or carbide depending on the job. High-speed steel works well for general use, while cobalt is better for harder metals. If I need extra durability and precision, I prefer carbide, though I handle it carefully because it can be more brittle.
Tip Sharpness and Accuracy
I always inspect the tip before buying. A sharp, well-centered tip helps me start drilling exactly where I want. With a 1.5 mm drill bit, accuracy matters a lot because there is very little room for error. I avoid bits that look uneven, dull, or poorly ground.
Shank Compatibility
I make sure the shank fits my drill or rotary tool properly. Some 1.5 mm bits come with straight shanks, while others are designed for precision pin vises or specialized machines. I choose the one that matches my tool so I can work safely and efficiently.
Use Case Matters
I always buy based on what I plan to drill. For wood, plastic, circuit boards, or soft metals, a standard precision bit usually works well. For tougher materials, I choose a stronger bit designed for metalworking. Matching the bit to the material helps me avoid breakage and get cleaner results.
Durability and Break Resistance
Because 1.5 mm drill bits are delicate, I look for brands known for durability. I prefer bits that can handle repeated use without snapping too quickly. In my experience, slow drilling speed and proper pressure also help extend the life of the bit.
Brand Reputation and Reviews
I usually check reviews before I buy. I trust brands that consistently deliver accurate sizing and good edge retention. Customer feedback helps me understand whether the bit performs well in real use, especially for fine detail work.
Price vs. Value
I do not always choose the cheapest option. For me, a slightly more expensive 1.5 mm drill bit is worth it if it lasts longer and drills more cleanly. I focus on value rather than price alone, since replacing broken or low-quality bits can cost more in the long run.
My Final Buying Tip
If I had to choose one rule, it would be this: I buy a 1.5 mm drill bit that matches my material, tool, and precision needs. When I combine the right material, sharp tip, and reliable brand, I get better results and fewer frustrations.
Final Thoughts
In my experience, a 1.5 mm drill bit is a small but essential tool for precise, detailed work. I find it especially useful when accuracy matters, whether I’m working on electronics, jewelry, or other fine projects. My key takeaway is that choosing the right bit can make a big difference in both the quality and ease of the job.
Author Profile
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Most of Miles Hart’s useful opinions began in crowded rooms, late local events, and ordinary errands that required something to work properly. Living in Asheville has given him a lasting appreciation for simple plans, good sound, comfortable gear, and the small details that keep an evening from becoming frustrating.
He pays attention to what happens after the purchase: whether a bag carries well, a speaker holds up, a light is actually pleasant to live with, or a feature turns out to be more trouble than it is worth. He is less interested in hype than in how things feel during real use.
At ShomoLive, Miles shares clear, personal thoughts shaped by everyday life and careful comparison. His aim is to help readers spot the difference between something that merely looks useful and something that genuinely earns its place.
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