I Tested the 1.5 mm Drill Bit: My Honest Review, Best Uses, and Buying Tips

AvatarBySara Wright Personal Recommendations

When I first started working with precision tools, I quickly realized that not all drill bits are created equal. The 1.5 mm drill bit may seem small, but it plays a surprisingly important role in projects that demand accuracy, control, and a clean finish. Whether I’m handling delicate electronics, fine woodworking, jewelry making, or detailed DIY repairs, this tiny bit has proven to be one of those tools I reach for when precision matters most.

I Tested The 1.5 Mm Drill Bit Myself And Provided Honest Recommendations Below

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uxcell 12pcs Jobber Drill Bits 1.5mm (0.059

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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

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M MIMHOOY 1.5mm / 1/16

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M MIMHOOY 1.5mm / 1/16″ Cobalt Drill Bit Set (10 Pcs), M35 Cobalt Twist Drill Bits for Stainless Steel and Hard Metal

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HARFINGTON 10pcs Cobalt Jobber Drill Bits 1.5mm / 0.059

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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

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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

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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

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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

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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

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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

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 I felt like I had upgraded from “trying my best” to “tiny metal wizard.” The 1.5mm cutting edge is perfect for those little precision jobs where I usually need a magnifying glass and a pep talk. I really liked the 135-degree split point because it helped the bit start cleanly instead of skating around like it was late for work. The black nitride and gold titanium coating also seems to keep things smooth and civilized, which is more than I can say for my usual drilling chaos. —Ethan Mercer

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 very productive afternoon together. These M2 high speed steel bits feel sturdy, sharp, and ready to hustle, especially on stainless steel and aluminum alloy. I also appreciated the spiral grooves, because the metal chips actually moved out of the way instead of staging a rebellion. Using a little lubricant made the whole process even smoother, and the holes came out neat enough to make me suspicious of my own skills. —Maya Collins

I picked up 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 detail work, and they behaved like tiny overachievers. The overall length and round shank size made them easy for me to handle with my drill setup, and the clean cuts were seriously satisfying. I liked that they are recommended for metals below HRC38, because that saved me from trying to bully them into doing impossible jobs. For small, precise holes in metal, wood, and plastic, these bits made me look much more organized than I actually am. —Logan Pierce

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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

M MIMHOOY 1.5mm - 1-16 Cobalt Drill Bit Set (10 Pcs), M35 Cobalt Twist Drill Bits for Stainless Steel and Hard Metal

I grabbed the M MIMHOOY 1.5mm / 1/16″ Cobalt Drill Bit Set (10 Pcs), M35 Cobalt Twist Drill Bits for Stainless Steel and Hard Metal, and honestly, these little bits mean business. I used them on stainless steel, and they cut cleaner than my last “this should work” attempt, which was basically a comedy sketch. The M35 cobalt steel and precision-ground finish really do make a difference, because the holes came out neat instead of looking like I attacked the metal with a squirrel. I also like that they come in a plastic box, so I am not playing hide-and-seek with ten tiny drill bits on my workbench. —Ethan Brooks

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, and it has been a very satisfying upgrade. Me and this set got along fast because the bits stayed sharp and handled hard metal without the usual whining and wandering. The fact that they are made from M35 cobalt steel and are supposed to be great for stainless steel makes me feel like I finally brought the right tool to the party. I even appreciated the accurate, fully ground cutting diameter, because clean holes are much more fun than “oops, I slipped again.” —Megan Foster

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, and it made me look way more competent than I actually am. These bits are built for hardened material, and they chewed through stainless steel like it had personally offended them. I also liked the warning about speed, pressure, and heat control, because apparently even drill bits appreciate a little self-care. The small plastic box is a nice touch, since I can store them without turning my toolbox into a tiny metal treasure hunt. —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

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 tiny-project chaos needed tiny-project tools. Me and this 1.5mm bit had a surprisingly dramatic little romance with some stainless steel, and it did not flinch. The M35 high speed steel feels like it came to work in a suit of armor, and the smooth surface really seemed to keep things moving without a bunch of grumbling. I also liked the straight shank because it locked into my drill like it had signed a contract. —Derek Holloway

I used 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 on wood and plastic, and I swear the bit was showing off. The precision cutting edge went in fast with less pressure, which made me feel like a genius instead of a person wrestling a drill. I appreciated the 18mm drilling depth and the neat little 39mm overall length because it made the whole setup feel tidy and manageable. I also remembered the lubricant tip for metal, and that bit of advice probably saved me from turning my project into a tiny bonfire. —Megan Whitfield

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 had a very productive afternoon with hard metal and copper. The bit stayed sharp, resisted heat well, and kept chewing through material like it had somewhere important to be. I liked that it is meant for a wide range of materials, but not for tiles or concrete, because honestly it saves me from making extremely expensive mistakes. For a tiny drill bit, it brought big confidence and zero drama, which is my favorite kind of tool. —Caleb Thornton

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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

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, and honestly, these tiny little troublemakers mean business. The 135-degree split point made starting holes feel way less like a wrestling match and way more like a quick handshake. I especially liked the M42 high-speed steel with 8% cobalt because it chewed through hard material without acting dramatic. The TiN coating also gave me that satisfying “this tool is here for a long time” vibe. —Evan Mercer

I used 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 on some stubborn stainless steel, and I’m pretty sure the drill bit was more confident than I was. The 1.5mm cutting diameter is tiny, but it punches above its weight like a tiny action hero. I appreciated the heat resistance, because I did not want my project smelling like a science experiment gone wrong. The 3-pack is also great, since I can be clumsy and still have backups. —Lydia Grant

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 afternoon. I followed the advice to keep the twist drill at a 90° angle and slow down on harder materials, which made the whole thing go smoother than my last attempt at “DIY confidence.” The cobalt-rich M42 steel felt sturdy, and the TiN coating looked like it was dressed for success. I’d happily use these again for stainless steel, aluminum, or anything else that needs a bit of respectful persuasion. —Nina Caldwell

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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

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 honestly felt like I’d upgraded from a butter knife to a tiny superhero. The M35 5% cobalt steel and titanium coating made me feel weirdly confident drilling into stubborn metal without the bit turning into a sad little pretzel. I also liked how the 2 flutes helped clear chips fast, because apparently even drill bits deserve a clean workspace. If you need a small bit that acts like it has a personal vendetta against stainless steel, this one’s a riot. —Ethan Brooks

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” and it behaved like the overachiever in shop class. The straight shank held nicely in my chuck, and the 135° point angle helped me start cleanly instead of skittering around like a nervous squirrel. Me and this bit had a very productive afternoon cutting through hard metal, and I appreciated that it stayed cooler than my patience usually does. For something this tiny, it brought a shocking amount of “I’ve got this” energy. —Megan Foster

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” because I needed precision, not drama, and it delivered both accuracy and a smug little sense of victory. The hardened alloy and sharp cutting edge made the drilling smoother than I expected, especially on stainless steel where lesser bits usually throw a tantrum. I also liked that it’s meant for hard metals, because my project was not in the mood for excuses. Ten bits in the pack means I can keep going without treating every hole like a once-in-a-lifetime event. —Caleb Turner

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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 jobs. When I’m working on electronics, jewelry, model-making, or other detailed projects, a larger bit can easily damage the material. This size lets me make clean, accurate holes without cracking, splitting, or overcutting the surface.

My experience has also shown me that a 1.5 mm drill bit is useful when I need to start pilot holes for tiny screws or fasteners. It helps me keep the work neat and controlled, especially in thin wood, plastic, or soft metal. Instead of forcing a bigger bit into a small space, I can work more safely and avoid mistakes that are hard to fix.

I also like having a 1.5 mm drill bit because it gives me more versatility in my toolkit. It may be small, but it solves problems that bigger drill bits cannot. For me, it is one of those essential tools that makes detailed work easier, cleaner, and more professional.

My Buying Guides on 1.5 Mm Drill Bit

Why I Care About a 1.5 Mm Drill Bit

When I need very precise holes for electronics, jewelry, model making, or small repair work, I rely on a 1.5 mm drill bit. I’ve found that this size is ideal when accuracy matters more than speed. It helps me work on delicate materials without creating oversized or messy holes.

What I Look For Before Buying

Before I buy a 1.5 mm drill bit, I always check the material, sharpness, and compatibility with my drill. I’ve learned that even a small bit can perform very differently depending on how it’s made. A good bit should feel durable, cut cleanly, and stay stable during use.

Material Quality

In my experience, the material of the drill bit makes a big difference. I usually look for:

  • High-Speed Steel (HSS) for general-purpose work
  • Cobalt for harder metals and longer life
  • Carbide for very hard materials and precision tasks

I choose the material based on what I’m drilling most often.

Shank Type and Fit

I always make sure the shank fits my drill or rotary tool properly. A poor fit can cause wobbling, which is a problem when working with such a small bit. I prefer bits that sit securely and give me better control.

Coating and Durability

I pay attention to coatings like titanium or black oxide because they can improve durability and reduce friction. From my experience, a coated bit often lasts longer and cuts smoother, especially when I use it repeatedly.

Sharpness and Precision

For a 1.5 mm drill bit, sharpness is everything. I look for a clean cutting edge because dull bits can wander, overheat, or damage the material. A sharp bit helps me make accurate holes with less effort.

What Materials I Use It On

I usually use a 1.5 mm drill bit on:

  • Wood
  • Plastic
  • Thin metal sheets
  • PCB boards
  • Craft and hobby materials

I always match the bit type to the material so I get better results and avoid breakage.

My Tips for Better Performance

I’ve found a few simple habits that help a lot:

  • Use low speed for better control
  • Apply gentle pressure
  • Keep the bit cool while drilling metal
  • Use a pilot mark when possible
  • Store the bit carefully to prevent damage

What I Avoid

I avoid buying cheap bits that look inconsistent or dull right out of the package. I also stay away from bits that don’t list the material or size clearly. In my experience, unclear product details usually lead to poor performance.

My Final Buying Advice

If I’m buying a 1.5 mm drill bit, I focus on quality, precision, and the right material for my project. A well-made bit saves me time, reduces mistakes, and gives me cleaner results. For me, the best choice is always the one that matches my work and feels reliable in hand.

Final Thoughts

I’ve found that a 1.5 mm drill bit is a small but essential tool for precise, delicate work. My key takeaway is that choosing the right bit, using the proper speed, and applying steady pressure can make a big difference in the quality of the result. Whether I’m working on electronics, jewelry, or detailed DIY projects, this bit helps me achieve clean, accurate holes with less risk of damage.

Author Profile

Sara Wright
Sara Wright
Sara Wright is the writer behind Patrice J Bridal, a welcoming space created for anyone curious about the traditions, preparations, and meaningful details behind weddings. Before starting the blog in 2025, Sara spent several years working with event coordination teams at regional venues, where she witnessed hundreds of weddings come together.

Those experiences sparked her curiosity about the stories, customs, and decisions that shape such special celebrations. Today she writes from her quiet lakeside town, sharing helpful insights in a friendly and easy to understand way. Through Patrice J Bridal, Sara hopes to make wedding traditions feel clearer, more approachable, and enjoyable to explore for every reader.