Best Drill Bit Sets for 2026
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Which drill bit set should you actually buy? The right answer depends on what you drill. A black oxide twist set handles wood, plastic, and mild steel for everyday DIY, but if you regularly drill stainless steel you need cobalt, and if you want flawless holes in hardwood you need brad-point bits. This guide ranks the 7 best drill bit sets for 2026 across every category and budget, from the all-around DEWALT DWA1184 to dedicated cobalt sets for metal and brad-point sets for fine woodworking. We evaluate each set on bit material and coating, point geometry, size coverage, shank type, and value. You will also find a coatings-and-materials explainer, a how-to-choose guide, and answers to the most common drill bit questions. Already know the size you need? Jump straight to our full drill bit size chart.
The best overall drill bit set is the DEWALT DWA1184 21-piece black oxide set — a clean-drilling, corrosion-resistant all-rounder that is hard to beat for the price. For metal, choose a cobalt set such as IRWIN or Norseman M35/M42, which stay hard at high heat for stainless and hardened steel. The best titanium value pick is the DEWALT DW1361 21-piece titanium-coated set for wood, plastic, and light metal. For woodworking, add a dedicated brad-point set for splinter-free, perfectly located holes. Need a specific size instead? See our full drill bit size chart.
Quick Picks: Best Drill Bit Sets 2026
Short on time? Here are our top recommendations for different materials and budgets:
How We Evaluated
Our Evaluation Criteria
We assessed each drill bit set on the factors that matter most when you are actually drilling: bit material and coating, point geometry (split point vs standard), size coverage and increments, shank type, and overall value. A great set should drill clean, accurately located holes, resist heat and dulling, and cover the sizes you reach for most often. Our guidance reflects general manufacturer specifications and well-established tool knowledge rather than independent lab measurements.
Material & Coating
HSS, black oxide, titanium nitride, or cobalt alloy and how it holds up to heat and wear
Point Geometry
135-degree split points self-center and reduce walking versus standard 118-degree points
Size Coverage
Range and increments, plus index case quality for organizing and storing the set
Value for Money
Performance and durability relative to price, including replacement-bit availability
We also weighed practical details like shank type (3/8-inch reduced shanks fit any chuck; hex shanks lock into impact drivers), whether the larger bits have reduced shanks to fit standard drills, and how well each index case keeps bits organized. Before drilling metal or hardwood, the right speed matters as much as the right bit — use our drill press speed calculator to dial in the correct RPM for your bit size and material. If you are setting up a tapped hole, our drill and tap calculator finds the right bit for the thread.
Drill Bit Set Comparison Table
| Set | Type / Coating | Pieces | Best Use | Price Tier |
|---|---|---|---|---|
| DEWALT DWA1184 | Black oxide HSS | 21 | All-around wood, plastic, mild steel | Budget-Mid |
| IRWIN / Norseman Cobalt M35 | Cobalt alloy (M35) | 15-29 | Stainless, hard metals | Premium |
| DEWALT DW1361 | Titanium nitride coated HSS | 21 | Wood, plastic, light metal | Budget |
| Brad-Point Wood Set | HSS brad-point | 7-31 | Clean, located holes in wood | Budget-Mid |
| Bosch Black Oxide Set | Black oxide HSS | 21-29 | Budget everyday drilling | Budget |
| Norseman/Viking Pro Cobalt | Cobalt alloy (M35/M42) | 29 | Pro metalworking, daily use | Premium |
| Bosch Masonry/Multi-Material | Carbide-tipped | 7-14 | Masonry, tile, multi-material | Budget-Mid |
Detailed Set Reviews
Dial in the Right Drill Speed
Use our drill press speed calculator to find the correct RPM for your bit size and material before you drill, so your bits last longer and your holes come out clean.
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Drill Bit Coatings & Materials Explained
The single biggest factor in how a drill bit performs is what it is made of and how it is coated. Understanding the differences will help you choose the right set and avoid overpaying for a coating you do not need.
HSS (High-Speed Steel)
High-speed steel is the baseline material for modern twist bits. It holds an edge at moderate temperatures and drills wood, plastic, and mild steel well. Bare HSS bits are the most affordable option and are perfectly adequate for general woodworking and soft materials. Their limitation is heat resistance: drill hard metal too fast and the edge will soften and dull. For most buyers, an HSS set with an added coating (below) is a better small upgrade.
Black Oxide
Black oxide bits are HSS bits with a black oxide surface treatment. The steel underneath is identical, but the finish adds corrosion resistance, reduces friction, and helps the bit hold cutting oil and shed chips. Black oxide typically lasts longer than bare HSS in wood and mild steel for only a small price increase, which is why it is the sweet spot for an all-purpose set. The DEWALT DWA1184 is a classic example.
Titanium Nitride (TiN) Coated
Titanium-coated bits are HSS bits with a thin gold-colored titanium nitride coating. The coating is harder than steel and reduces friction, so a fresh titanium bit drills faster and cooler than uncoated HSS. The catch: the coating is only microns thick and wears off the cutting edge over time, and once it is gone you cannot resharpen it back. Titanium bits are best for wood, plastic, and occasional light metal at a budget price. The DEWALT DW1361 is a strong titanium value pick.
Cobalt (M35 and M42)
Cobalt bits are not coated — they are a solid alloy of steel and cobalt all the way through. M35 contains about 5% cobalt and M42 about 8%, with M42 holding hardness at even higher temperatures. Because the hardness runs through the whole bit, cobalt stays sharp drilling stainless steel, cast iron, and hardened alloys, and it can be resharpened. Cobalt is the material to buy for serious or repeated metalwork. It costs more and is slightly more brittle than HSS, so let the bit do the cutting and avoid prying. See cobalt drill bit sets from IRWIN, Norseman, and Viking.
Carbide (and Carbide-Tipped Masonry)
Carbide is far harder than any steel and holds an edge at extreme temperatures, but it is brittle. Solid carbide twist bits are used mainly for production metal drilling and printed circuit boards. For most workshops, the relevant carbide product is the carbide-tipped masonry bit, which has a tough carbide cutting tip brazed onto a steel body for drilling brick, block, concrete, and tile. Do not use standard twist bits on masonry, and do not use masonry bits on metal — match the bit to the material.
Brad-Point Bits (for Wood)
Brad-point bits are twist bits modified for woodworking. A sharp center spur locates the hole exactly and prevents the bit from walking, while two outer spurs score the wood fibers for a clean, splinter-free rim. They drill flat-bottomed, accurately positioned holes that ordinary twist bits cannot match, which makes them ideal for dowels, shelf pins, and joinery. Brad-point bits are made for wood only — do not use them on metal. Pair a brad-point set with a general twist set for the best of both worlds.
How to Choose a Drill Bit Set
With the materials covered, here is how to match a set to your needs and figure out how many bits you actually need.
Match the Set to Your Material
- Mostly wood and plastic, some mild steel: A black oxide set like the DEWALT DWA1184 is all you need, and a titanium set like the DEWALT DW1361 is a cheaper alternative.
- Stainless steel and hard metals: Buy a cobalt set (M35 or M42). The extra cost pays for itself the first time you drill stainless without burning up a bit.
- Fine woodworking and joinery: Add a brad-point set for clean, accurately located holes.
- Masonry and tile: Use carbide-tipped masonry bits with a hammer drill — never standard twist bits.
How Many Bits Do You Need?
You do not need a giant index for most work. Here is a practical guide to set size:
- 21-piece fractional set (1/16" to 1/2" in 1/64" steps): The right choice for the vast majority of home and workshop use. Covers nearly every common hole size.
- 29-piece set: Adds finer increments and a wider range. Worth it if you build frequently, work on cars or machinery, or need precise hole sizing for tapping.
- Specialty additions: A brad-point set for woodworking, a cobalt set for metal, and a few carbide masonry bits cover the gaps a single twist set leaves.
If you are sizing holes for screws or taps, our drill bit size chart and drill and tap calculator tell you exactly which bit to grab. For screw pilot holes specifically, see our wood screw chart.
Shank Type and Drill Compatibility
Check the shank before you buy. Bits larger than 3/8 inch often have a reduced shank so they fit a standard 3/8-inch chuck — useful if you do not own a 1/2-inch drill. Hex shanks lock into impact drivers and quick-change chucks without slipping, which is handy for cordless drill/driver work. For drill press use, straight round shanks in an index case are standard. Whatever bit you use, set the correct speed first; our drill press speed calculator prevents the overheating that ruins bits.
Frequently Asked Questions
For most DIYers and woodworkers, the best all-around drill bit set is the DEWALT DWA1184 21-piece black oxide set. It covers the most common fractional sizes from 1/16 inch to 1/2 inch, drills cleanly in wood, plastic, and mild steel, and the black oxide finish resists corrosion at a budget-friendly price. If you frequently drill hard metals like stainless steel, step up to a cobalt set (IRWIN or Norseman M35/M42). For dedicated woodworking, a brad-point set produces cleaner holes than twist bits.
Cobalt drill bits are the best choice for metal, especially hard metals like stainless steel, cast iron, and hardened alloys. Cobalt bits (M35 with 5% cobalt or M42 with 8% cobalt) are made from a steel-cobalt alloy throughout, so they stay hard at the high temperatures generated when drilling metal. For softer mild steel and aluminum, a quality black oxide or titanium-coated HSS set works fine and costs less. The keys for any metal drilling are a 135-degree split point, cutting oil, and a slow speed — check our drill press speed calculator for the right RPM.
It depends on the material you drill. Titanium-coated bits are HSS bits with a thin titanium nitride coating that reduces friction and extends edge life, but the coating wears off over time and cannot be sharpened back. They are best for wood, plastic, and occasional light metal, and they cost less — the DEWALT DW1361 is a good value pick. Cobalt bits are a solid steel-cobalt alloy all the way through, so they stay hard at high heat and can be resharpened, making them far better for repeated drilling in stainless and hard metals. For general DIY use titanium offers better value; for serious metalwork, cobalt is the better long-term investment.
Black oxide bits are high-speed steel (HSS) bits that have been treated with a black oxide surface finish. The bits are the same HSS material underneath, but the black oxide coating adds corrosion resistance, reduces friction, and helps the bit shed chips and retain cutting oil. Black oxide bits typically last longer than bare HSS bits in wood and mild steel, and they cost only slightly more. Plain HSS bits are fine for wood and soft materials, but for an all-purpose set most buyers should choose black oxide like the DEWALT DWA1184 for the small upgrade in durability.
For most home and workshop use, a 21-piece fractional set covering 1/16 inch to 1/2 inch in 1/64-inch increments handles the vast majority of jobs. If you build a lot or work on cars and machinery, a 29-piece set gives you finer size coverage. Woodworkers should add a dedicated brad-point set, and anyone drilling masonry needs separate carbide-tipped masonry bits. To match a bit to a screw or tap, see our drill bit size chart.
Final Recommendations
After weighing material, geometry, coverage, and value, here are our recommendations for different scenarios:
Best Overall Drill Bit Set (Our #1 Pick)
The DEWALT DWA1184 21-Piece Black Oxide Set is the set most people should own. The black oxide HSS bits feature 135-degree split points that self-center and resist walking, the size range from 1/16 inch to 1/2 inch covers nearly every common hole, and the sturdy index case keeps everything organized. It drills wood, plastic, and mild steel cleanly at a price that makes it an easy first set. Buy this, add specialty sets later as your work demands.
Best for Metal
For drilling stainless steel and hard metals, a cobalt set (IRWIN or Norseman M35/M42) is the right tool. Because the cobalt alloy runs through the whole bit, it stays hard at the heat that destroys ordinary HSS, and it can be resharpened for years of service. Use cutting oil and a slow speed and these bits will out-drill anything else on metal.
Best Titanium Value
The DEWALT DW1361 21-Piece Titanium Set is the budget pick for buyers who want a low-friction, fast-cutting set for wood, plastic, and light metal. The titanium nitride coating helps fresh bits drill cooler and faster, and the price is hard to argue with. Just remember the coating wears and cannot be resharpened, so it is best for lighter-duty use rather than heavy metalwork.
Best for Woodworking
For clean, accurately located holes in wood, a brad-point set is essential. The center spur locates the hole exactly and the outer spurs score the fibers for splinter-free rims — perfect for dowels, shelf pins, and joinery. Keep it alongside your twist set and reach for it whenever appearance and precision matter in wood.
Get the Right Hole, Every Time
Knowing which bit to grab is half the battle. Use our drill bit size chart to find exact sizes, our drill and tap calculator to size tapped holes, and our drill press speed calculator to set the right RPM so your bits stay sharp.
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