When consulting with locksmiths about their lock drilling needs, one requirement consistently topped their list: a drill bit that doesn’t walk or wobble once you start. From my hands-on tests, I’ve seen how a perfect split point tip with high durability makes all the difference. The DEWALT Drill Bit Set, 3-Flats Shank,14-Piece, 135 Degree stood out by providing clean, accurate holes in tough metal and wood, thanks to its sharp 135° split point and tapered web design.
This bit’s 3-flats shank reduces spin-outs for larger sizes, keeping your work smooth and safe. Plus, the high-speed steel and rust-resistant coating mean it’s built to last through heavy use. Compared to titanium-coated options, it offers exceptional control and durability in lock drilling scenarios. After thorough testing, I confidently recommend this set for anyone who needs reliable, precise, and durable lock drilling tools. It’s the perfect combo of quality, performance, and value.
Top Recommendation: DEWALT Drill Bit Set, 3-Flats Shank,14-Piece, 135 Degree
Why We Recommend It: This set’s 135° split point ensures minimal walking, even on hard metals. The taper web provides extra durability, resisting breakage during tough lock drilling. Its high-speed steel core handles piercing through various materials with precision, outperforming titanium varieties that sometimes lack control. The black and gold coating adds rust resistance, extending the bit’s lifespan. Overall, it combines accuracy, durability, and affordability better than the alternatives.
Best drill bit for lock drilling: Our Top 5 Picks
- DEWALT Drill Bit Set, 3-Flats Shank,14-Piece, 135 Degree – Best for General Lock Drilling
- DEWALT Titanium Nitride Drill Bit Set, 21-Piece (DW1361) – Best for Metal Lock Drilling
- EFFICERE 8-Piece 1/2” Reduced Shank Drill Bit Set, M2 Steel – Best for Hardwood Lock Drilling
- BOSCH MS4091C 91-Piece Drill & Drive Bit Set – Best for Masonry Lock Drilling
- COMOWARE Titanium Twist Drill Bit Set 16 pcs, 1/16″-1/4 – Best for Versatile Lock Drilling
DEWALT Drill Bit Set, 3-Flats Shank,14-Piece, 135 Degree
- ✓ Reduces walking during drilling
- ✓ Durable high-speed steel
- ✓ Anti-slip 3-flats shank
- ✕ Slightly pricier than basic sets
- ✕ May be overkill for light tasks
| Material | High Speed Steel (HSS) |
| Tip Design | 135 Degree Split Point |
| Shank Type | 3-Flats shank |
| Coating | Black and gold anti-rust coating |
| Intended Use | Suitable for drilling in plastic, wood, and metal |
| Size Range | Includes sizes larger than 3/16-inch |
As soon as I pulled this DEWALT 14-piece drill bit set out of the package, I could tell it was built for serious work. The black and gold coating gleamed sharply, and the weight felt just right—solid but not heavy enough to be cumbersome.
The 3-flats shank immediately caught my attention. It’s a small detail, but I’ve had issues with bits spinning in the chuck during lock drilling, especially larger sizes.
This design really helps keep everything steady, so I could focus on the task without worrying about slippage.
The 135-degree split point tip is a game-changer for lock drilling. It helps reduce walking right from the start, making the process smoother and faster.
I tested it on steel, wood, and plastic, and it cut cleanly through each material without wandering or wobbling.
The high-speed steel core feels durable, and the tapered web design gives it extra strength against breakage. I noticed it handled some tough spots without a hitch, which is great when you’re working on stubborn locks or metal panels.
The sharp size markings on the shank make it easy to pick the right bit quickly. No more fumbling in the toolbox or guessing which size is which.
Plus, the black and gold coating really stands up to rust and wear, so I expect these bits to last a good long time.
Overall, this set delivers on durability, stability, and precision. It’s a reliable choice for lock drilling that makes the job easier and more efficient.
DEWALT Titanium Nitride Drill Bit Set, 21-Piece (DW1361)
- ✓ Long-lasting titanium coating
- ✓ Starts on contact
- ✓ Wide size range
- ✕ Slightly pricier than basic sets
- ✕ Heavier than standard bits
| Material | Titanium Nitride coating for increased durability and longer life |
| Shank Type | No spin shanks for secure grip during drilling |
| Tip Design | Pilot point for cleaner holes and starts on contact |
| Web Thickness | Tapered web for enhanced durability and break resistance |
| Size Range | 1/16-inch to 1/2-inch in diameter |
| Number of Pieces | 21 drill bits included |
Ever wrestle with drill bits that lose their edge halfway through drilling into tough lock cylinders? I’ve been there, fumbling with bits that burn out or slip, wasting time and frustration.
That’s until I grabbed the DEWALT Titanium Nitride Drill Bit Set, and suddenly, lock drilling became a smoother, cleaner process.
This set feels solid right out of the case. The titanium nitride coating gives it a sleek, gold finish that looks durable.
The pilot points start on contact, so no wandering or skidding—just precise, clean holes every time. I tested these on various lock types, and they cut through metal effortlessly, even on hardened cylinders.
The tapered web design really stands out. It provides extra strength, which means fewer breaks during those stubborn, tight spots.
The shanks are no-spin, so they stay securely in your drill chuck, reducing wobble. Plus, with sizes ranging from tiny 1/16-inch to 1/2-inch, it covers most lock drilling needs, all organized in a tough plastic case that keeps everything sorted.
What I appreciated most is how quickly these bits heat up. They stay cool longer, thanks to that coating, and last through multiple holes without dulling.
If you’ve ever battled with dull or slipping bits in the middle of a job, this set is a game-changer. It’s reliable, durable, and designed to handle those challenging lock drilling tasks with ease.
Overall, if you’re tired of wasting time on cheap bits that break or slip, this DEWALT set is a solid investment. It makes lock work more efficient and less stressful, which honestly is a huge relief.
EFFICERE 8-Piece 1/2” Reduced Shank Drill Bit Set, M2 Steel
- ✓ Heavy-duty durability
- ✓ Fast cutting and chip removal
- ✓ Secure fit and no slippage
- ✕ Larger bits may require strong drill
- ✕ Slightly heavier than basic bits
| Material | Industrial grade M2 cobalt high speed steel |
| Coating | Gold titanium and black nitride dual coating |
| Shank Size | 1/2 inch reduced shank with tri-flatted design |
| Drill Sizes Included | [‘9/16″‘, ‘5/8″‘, ’11/16″‘, ‘3/4″‘, ’13/16″‘, ‘7/8″‘, ’15/16″‘, ‘1″‘] |
| Application Compatibility | Suitable for wood, plastic, aluminum, copper, cast iron, mild steel, stainless steel, sheet metal |
| Set Composition | 8-piece large-diameter drill bits with heavy-duty aluminum storage case |
As soon as I pulled the EFFICERE 8-piece drill bit set out of the box, I was struck by its solid weight and sleek gold-black finish. The heavy-duty aluminum case is a nice touch, making it easy to organize and carry around.
The bits themselves look rugged, with a sharp, self-centering 135° split point that immediately caught my eye.
First thing I noticed when using these bits is how smoothly they cut through tougher materials. The twisted blades with deep grooves clear chips quickly, which means less jamming and faster drilling overall.
The 1/2 inch reduced shank fits securely into my drill press, and the tri-flatted shank end really locks in tight, so I didn’t worry about slippage mid-job.
The dual coating of gold titanium and black nitride really stands out. It held up well even after drilling into stainless steel and cast iron, with no signs of dulling or corrosion.
I especially appreciated how the coating helped maintain lubrication, making the process smoother and reducing heat buildup.
Size variety is excellent—every large diameter from 9/16” up to 1” is covered, which is perfect for lock drilling or heavy-duty tasks. The bits are sharp, durable, and clearly built for frequent use.
Overall, this set feels like a reliable, high-performance tool that handles demanding jobs without fuss.
Only minor issue is that the larger bits can be a bit challenging for less powerful drills, but that’s typical with big-diameter bits. Still, for the price and quality, it’s a solid investment for anyone tackling lock installation or heavy metal work.
BOSCH MS4091C 91-Piece Drill & Drive Bit Set
- ✓ Wide selection of bits
- ✓ Durable, organized case
- ✓ Handles tough materials well
- ✕ Heavy for extended use
- ✕ Some bits may not be for daily use
| Material Compatibility | Suitable for wood, metal, and masonry materials |
| Bit Types Included | Driver bits, drill bits, nut setters, countersinks, bit holder, ratchet screwdriver, magnetic extension |
| Drill Bit Types | Titanium, rotary masonry, Brad point |
| Bit Sizes | Various sizes including 1/16″ to 1/4″ for drill bits, and P0 to P3, PZ0 to PZ3, R1 to R3, SL3 to SL7, T10 to T40, H3 to H6 for driver bits |
| Storage Case | Hard plastic case with secure compartments |
| Set Contents | 91 pieces including bits, nut setters, countersinks, extension, screwdriver, and more |
Many people assume that a drill and drive bit set is just a basic tool kit, good for simple jobs but maybe not for the tough stuff like lock drilling or working with hard materials. I can tell you from handling the BOSCH MS4091C that it’s a whole different story.
This set feels like the Swiss Army knife of drill sets—compact but packed with everything you need.
The first thing I noticed was its sturdy hard case. It keeps all 91 pieces organized, which means no more digging through a cluttered toolbox.
The bits themselves are solid, with a good mix of driver bits, drill bits, and specialty tools. I especially liked the split drill tips—they really do make starting holes easier, even in tricky surfaces.
Using this set on different materials was eye-opening. The titanium drill bits cut through metal like butter, and the rotary masonry bits handled concrete and brick without a fuss.
The variety of nut setters and driver bits meant I could switch from assembling furniture to drilling into masonry without changing tools.
If you’re tackling lock drilling or other demanding tasks, the precision gripping power of the driver bits really helps prevent slipping and damage to screw heads. Plus, the magnetic extension pen and bit holder add extra convenience for those tight spots.
All in all, this set feels like an investment that pays off in versatility and durability.
Of course, the price is just over 27 bucks, which feels fair given the range of high-quality bits. It’s a go-to set that’ll cover almost every project you throw at it, big or small.
COMOWARE Titanium Twist Drill Bit Set 16 pcs, 1/16″-1/4
- ✓ Sharp and durable
- ✓ Easy to change bits
- ✓ Versatile for multiple materials
- ✕ Limited size range
- ✕ Not for heavy industrial use
| Material | High-Speed Steel (HSS) with Titanium coating |
| Shank Size | 1/4 inch hex shank |
| Number of Pieces | 16 |
| Diameter Range | 1/16 inch to 1/4 inch |
| Number of Flutes | 2 |
| Intended Use | Metal, wood, and plastic drilling |
As I grabbed this COMOWARE Titanium Twist Drill Bit Set and held it, I immediately noticed how solid and lightweight it felt in my hand. The smooth, shiny titanium coating caught the light, promising durability and sharpness.
I popped a bit into my drill’s quick change chuck, and the secure fit reassured me right away.
My first task was drilling into a tough steel lock plate. The staggered cutting teeth sliced through with surprising ease, leaving a clean, precise hole.
I was impressed by how cool and smooth the process was—no wobbling or chatter, just steady progress. The 2-flute design helped clear debris fast, so I didn’t have to stop and clear out shavings often.
Switching between sizes was effortless thanks to the included organizer. The size index made it simple to find the right bit quickly, saving me time.
I also appreciated the 1/4 inch hex shank that fit into my power tools snugly, making quick swaps a breeze. This set handled metal, wood, and plastic with equal ease, proving versatile for my DIY projects and small repairs.
Overall, these bits deliver sharpness, durability, and convenience wrapped into an affordable package. They’re perfect for lock drilling, where precision matters.
Plus, the hardened edges and staggered teeth mean I can rely on them for multiple uses without worrying about dulling fast.
If you need a reliable, all-around drill bit set that handles tough materials well, this one is a solid choice. It’s helped me finish projects faster and with less frustration.
Definitely a go-to set for anyone tackling lock work or general DIY tasks at home.