Anyone who has snapped a bit mid-hole knows the difference a solid set makes. Cheap fasteners mushroom under load, tips round out after a few weekend builds, and the wrong geometry in metal just walks across the surface. The right selection removes those frustrations, and the picks below cover the main scenarios you actually face: driving fasteners, drilling wood and metal, tapping threads, and stocking a small home shop.
The Leading Options At A Glance
DEWALT 40-Piece FlexTorq Impact Driver Bit Set (DWA2T40IR)
DEWALT 100-Piece FlexTorq Impact Driver Bit Set (DWA2FTS100)
DEWALT 45-Piece Tough Case Bit Set (DW2166)
Chicago-Latrobe HM18 HSS Drill and Tap Set, Metric
Bosch BL2137 5/32 in. Black Oxide Jobber Drill Bit
IRWIN 11/64 in. Cobalt Split Point Drill Bit
Fodeuxp 6-Piece Titanium HSS Drill Bit Set (3-8mm)
Fodeuxp 8-Piece Titanium HSS Drill Bit Set (3-10mm)
Fodeuxp 10-Piece Titanium HSS Drill Bit Set (3-13mm)
More On The Choices That Made The List
The DWA2T40IR is purpose-built for impact drivers, where ordinary bits tend to snap under the high torque pulses. Its FlexTorq zone absorbs twisting shock and lets the bit flex up to 15 degrees before recovering, which is the difference between a bit that lasts a remodel and one that splits on a deck job. The CNC-machined tip geometry grips fasteners cleanly, reducing the cam-out (where the bit slips out of the screw head) that chews up Phillips heads.
Compared with the larger 100-piece set reviewed below, this 40-piece kit skips the drill bits and nut drivers, so you only carry what you actually need for driving screws. You get a magnetic screw lock sleeve for better hold on longer fasteners, and the small case fits a tool drawer without taking over the bench.
Useful Strengths
- FlexTorq zone reduces breakage in high-torque impact applications
- CNC-machined tips help prevent cam-out on Phillips and Torx fasteners
- Compact 40-piece count keeps the set focused on driving tasks
- Carry case makes drawer storage and job-site transport painless
- Magnetic screw lock sleeve holds longer fasteners steady
Things To Consider
- No drill bits or nut drivers, so you pair it with a separate drilling set
- 40 pieces may feel light for crews running several trades at once
Key Specs
Who It Suits Best
Remodelers, deck builders, and serious DIYers who run an impact driver daily and want bits that hold up to repeated high-torque use.
Where Another Pick Suits Better
If you also drill regularly and want one kit covering both driving and drilling, the DEWALT DWA2FTS100 100-Piece FlexTorq Impact Driver Bit Set bundles both functions into a single ToughCase.
The DWA2FTS100 is the master kit for shops that don’t want to dig through five different cases to find the right bit. It includes 30 FlexTorq driver bits, 14 gold pilot-point drill bits for wood and metal, magnetic nut drivers, and a ToughCase that clips to other DEWALT storage. The pilot-point tips start on contact, which saves time when you are pre-drilling cabinet holes or running screws into hardwood.
The trade-off is weight and size, because 100 pieces in a stackable case adds bulk to a bag. For crews working on multiple job sites, that bulk is worth it. For a homeowner pulling out the drill twice a year, the 40-piece set above is easier to live with.
The Helpful Details
- Combines driving bits, drill bits, and nut drivers in one case
- Pilot-point drill bits start on contact and reduce walking
- ToughCase is stackable with other DEWALT storage systems
- Magnetic nut drivers speed up bolt-driving tasks
Points To Keep In Mind
- 100 pieces means more weight in a tool bag than smaller sets
- You may never touch some of the included specialty bits
Feature Snapshot
Best Suited To
Tradespeople and serious DIYers who want one comprehensive kit for both driving fasteners and drilling pilot holes across varied materials.
Skip It When
If you only need driving bits for occasional deck or furniture work, the DEWALT 40-Piece FlexTorq Impact Driver Bit Set (DWA2T40IR) keeps things lean and easier to manage.
The DW2166 is the kit for people who lose track of bits in the bottom of a drawer. The patented bit-bar lets you pop bits out in a single motion and rearrange them however you want. The clear lid shows the contents at a glance, and the small bulk storage area handles spare screws, anchors, and small hardware. The clip latch closes securely so the case does not pop open in a truck.
Where the bigger DWA2FTS100 focuses on versatility, the DW2166 focuses on organization. The included 55mm double-ended bits and standard power bits cover most household driving tasks without overwhelming the user. You trade FlexTorq impact-rated toughness for a tidier, more accessible package.
Strengths Worth Knowing
- Connectable storage system clips to other DEWALT cases
- Patented bit-bar design lets you remove bits in one smooth motion
- Clear lid shows contents without opening the case
- Built-in small bulk storage holds loose screws and anchors
- Clip latch keeps the case closed during transport
Honest Caveats
- Not impact-rated for heavy driver use like the FlexTorq sets
- 45 pieces still leaves gaps in specialty fastener coverage
Right Fit For
Homeowners and hobbyists who want a tidy, visible, modular case that lives on a pegboard or in a kitchen drawer.
Look Elsewhere When
For high-torque impact driver work, the DEWALT 40-Piece FlexTorq Impact Driver Bit Set (DWA2T40IR) offers better shock resistance and longer life under stress.
The Chicago-Latrobe HM18 is the pick when your project moves from drilling to threading. This 18-piece set pairs black oxide high-speed steel drill bits with matching uncoated taps, covering metric sizes from M2.5 to M12. Tapping (cutting internal threads) requires a hole of the right diameter first, and the matched pairs in this set remove the guesswork of matching tap drills to fasteners.
Black oxide is a surface treatment that adds mild wear resistance and chip flow over standard HSS, though it is not as hard as cobalt for stainless or hardened steel. The metal index case keeps sizes organized so you do not waste time hunting through a drawer mid-fabrication. This set earns its place in a small machine shop or a serious hobbyist’s bench.
What Stands Out
- Matched drill and tap pairs eliminate sizing guesswork for threads
- Metric coverage from M2.5 through M12 fits most engineering work
- Black oxide surface improves chip flow and mild wear resistance
- Metal index case organizes sizes for fast retrieval
Trade Offs
- Black oxide HSS is not ideal for very hard stainless or tool steel
- 18 pieces mean you may need to source other sizes for specialty work
At A Glance
Made For
Machinists, fabricators, and serious hobbyists who regularly drill and tap holes in steel, aluminum, or brass for repair and fabrication work.
Consider Something Else When
For pure drilling in harder alloys without the tapping step, the IRWIN 11/64 in. Cobalt Split Point Drill Bit handles stainless and tool steel more confidently.
The Bosch BL2137 is a single 5/32-inch jobber-length drill bit (a “jobber” is the standard mid-length drill that fits most corded and cordless drills), but it punches well above its size class thanks to a refined speed helix. The flute geometry evacuates chips faster than a standard twist bit, which keeps the cutting edge cooler and extends working life. It works across steel, copper, aluminum, brass, oak, maple, MDF, pine, PVC, and acrylic, so one bit handles most materials you will encounter at home.
Buying a single bit seems odd until you have thrown out cheap bits that wander off-center on sheet metal. The split-point tip starts without a pilot dimple, which is a small but real time-saver on repetitive work. It is not a set, so you pair it with a broader bit index for a full kit.
Useful Highlights
- Speed helix design clears chips faster than standard bits
- Split-point tip starts on contact without a center punch
- Black oxide finish reduces heat buildup during extended drilling
- Works across metal, hardwood, softwood, and common plastics
Room For Improvement
- Single-bit purchase means higher per-piece cost than a set
- 5/32-inch size covers one specific diameter, not a range of holes
Quick Facts
Who Should Grab It
DIYers who burn through cheap 5/32-inch bits and want a single reliable replacement for pilot holes, hinge drilling, and light metal work.
Not Your Match When
If you need a full size range for varied projects, the Fodeuxp 10-Piece Titanium HSS Drill Bit Set covers 3mm through 13mm at a fraction of the per-piece cost.
The IRWIN 3016011 is the right bit for the materials that frustrate standard HSS. Cobalt alloy steel holds hardness at higher temperatures, so the cutting edge stays sharp when you push it through stainless steel, hardened fasteners, or thick plate. The 135-degree split point is a geometry that lets the bit self-center on contact, eliminating the walking that ruins work on slick surfaces.
This is a single 11/64-inch bit aimed at maintenance and repair work, not full-shop coverage. Most owners commonly pick up a small set of cobalt bits in the sizes they reach for most, then fill in with cheaper HSS for wood and soft metal. You may find the cobalt premium easier to justify once you have ruined a standard bit halfway through a stainless repair.
Noteworthy Benefits
- Cobalt alloy holds hardness at higher drilling temperatures
- 135-degree split point self-centers without a pilot dimple
- Resists wear in stainless steel and other hard alloys
- Heat-treated construction supports long service life
Potential Compromises
- Cobalt bits are more brittle than standard HSS and prefer steady feed pressure
- Single 11/64-inch size does not cover the rest of your drilling range
Whose Shelf It Belongs On
Anyone tackling plumbing, automotive, or appliance repair where stainless fasteners and hardened parts are part of the job.
Another Choice May Suit
For general home drilling in wood and mild steel, the Bosch BL2137 5/32 in. Black Oxide Jobber Drill Bit covers everyday holes at a friendlier per-piece cost.
The Fodeuxp 6-piece set is a starter-friendly way to add a small range of twist drill bits to a drawer. The titanium coating lowers friction and reduces heat during operation, which helps the high-speed steel substrate keep its edge across repeated home tasks. The size range from 3mm to 8mm covers most household needs, including shelf brackets, light electrical work, and craft projects.
Six pieces is intentionally lean. You do not pay for sizes you will never use, and the small index slips into a kitchen junk drawer without complaint. If you find yourself reaching past 8mm often, the 10-piece set reviewed last in this list extends the range to 13mm.
Notable Upsides
- Titanium coating reduces friction and heat during drilling
- Compact six-piece range fits the most common household sizes
- Maintains sharpness across repeated daily use on mild materials
- Slim index case stores easily in a drawer or shelf
Worth Bearing In Mind
- Titanium coating wears over time and is not the same as solid carbide
- Limited size spread may force separate purchases for larger holes
Perfect Match For
Beginners and light DIYers who want a manageable starter set for shelf mounting, light wood projects, and craft work.
Swap It Out When
You regularly need holes above 8mm for plumbing or larger fasteners, in which case the Fodeuxp 10-Piece Titanium HSS Drill Bit Set adds the upper sizes without much extra cost.
The 8-piece Fodeuxp sits in the comfortable middle of the lineup, adding 7mm, 8mm, and 10mm to the 6-piece version’s range. The titanium-coated high-speed steel construction handles the same daily renovation and craft work, with the same heat and friction benefits. The 3-10mm window covers most pilot holes, anchor bolts, and dowel joints that come up in standard DIY projects.
The honest read is that this set is the everyday workhorse of the Fodeuxp line. You get enough variety to skip a second purchase for months, without paying for the larger 13mm size that you may rarely touch. If you do run into 13mm needs, the 10-piece version below covers that without much extra.
Advantages To Know
- Eight sizes cover most household and craft drilling needs
- Titanium coating extends working life over uncoated HSS
- Includes the 7mm and 10mm sizes the 6-piece set skips
- Maintains steady sharpness through repeated weekend projects
Points To Note
- Still tops out at 10mm, so larger holes need another bit
- Best suited to mild materials; not built for stainless or hardened steel
Built With In Mind
DIYers tackling weekend projects, light furniture builds, and renovation tasks who want a balanced set without excess pieces.
Reach For A Different Pick When
For heavier fabrication or plumbing where you need 13mm capacity, the Fodeuxp 10-Piece Titanium HSS Drill Bit Set rounds out the upper end of the range.
The 10-piece Fodeuxp is the broadest of the three titanium-coated sets, reaching from 3mm to 13mm. The extra 9mm and 13mm sizes open the door to plumbing holes, larger anchor bolts, and dowel joints that the smaller sets cannot handle. Same titanium-over-HSS construction, same low-friction cutting action, just more range on the high end.
For most homeowners, 13mm is overkill, but for anyone running a workshop or tackling frequent renovation, the wider size spread saves swapping in a separate bit mid-project. The 3-13mm range is wide enough that you may find yourself reaching for this set for almost every hole in the shop, with the smaller sets becoming secondary backups.
Reasons It Performs
- Broad 3-13mm range covers pilot, standard, and oversized holes
- Titanium coating supports repeated daily drilling without rapid wear
- Ten sizes reduce mid-project bit swaps for varied hole diameters
- Works well for renovation, plumbing, and workshop tasks
Less-Strong Areas
- Two of the ten sizes may rarely see use in a typical home shop
- Not designed for hard stainless or tool steel drilling
Who Will Love This
Frequent DIYers, workshop hobbyists, and homeowners handling renovation projects who want one set that covers nearly every household hole size.
A Better Fit Elsewhere
For occasional light tasks where 6mm is the most common size, the Fodeuxp 6-Piece Titanium HSS Drill Bit Set keeps storage slimmer and skips the rarely used larger sizes.
What To Look For Before Buying Quality Drill Bits
The first decision is the job itself. Screwdriver bits and twist drill bits are different tools with different geometry, and confusing them leads to snapped shanks and stripped fasteners. Screwdriver bits are for driving screws; twist drill bits (the spiral-fluted type) are for making holes. Most home workshops need both functions covered, but the priority depends on whether you build more or fasten more.
The second decision is material. High-speed steel handles wood, soft metals, and plastics, and is the most affordable. Black oxide HSS adds mild wear resistance for longer life. Cobalt alloy steel is the choice for stainless steel and other hard alloys because it holds hardness at high temperatures. Titanium coatings reduce friction and heat but wear off eventually, so they extend the life of the underlying HSS rather than replacing it.
The third decision is size coverage. Bit sets in the 6- to 10-piece range cover most household needs at a manageable price. Larger sets make sense for shops that want one case with everything, while single bits (like the Bosch BL2137 or the IRWIN cobalt) work as targeted replacements when a specific size wears out. For driving tasks, impact-rated FlexTorq bits cost more but survive the high torque of an impact driver far longer than standard bits.
The fourth decision is the chuck and the tool. Most modern cordless drills accept 1/4-inch hex shanks on both bits and small drill bits, but check the chuck capacity for larger twist bits. A 13mm twist bit is useless if the chuck only opens to 10mm. Matching the bit type to the tool type, impact-rated for impact drivers, standard for drill-drivers, cobalt for hard metal, keeps the bit alive and the work accurate.
Key Considerations Across These Picks
Where Shoppers Go Wrong
The most common slip is buying a bit set for the wrong tool. Standard screwdriver bits snap quickly in an impact driver because they cannot flex under the torque pulses, and FlexTorq bits are wasted in a low-power drill-driver where the shock absorption is unnecessary. Match the bit to the tool.
Another frequent mistake is buying a 100-piece set for two weekend projects a year. The extra pieces end up in a junk drawer unused, and the case takes more space than the work deserves. Smaller focused sets like the 6-piece Fodeuxp or the 40-piece DEWALT cover what most people actually need without the storage drag.
When Paying More Pays Off
The extra money on cobalt bits buys heat resistance, not raw strength. Stainless steel, hardened bolts, and thick plate generate enough heat at the cutting edge to soften standard HSS, which is why cobalt holds up where cheaper bits burn out. The upgrade is worth it for anyone regularly drilling into hard alloys, but it is wasted on pine and drywall.
Impact-rated FlexTorq bits cost more than standard bits because the shock-absorbing zone prevents the snap failures that ruin ordinary bits in an impact driver. The upgrade pays for itself fast for anyone running an impact driver daily, since replacement costs and downtime drop noticeably. For occasional drill-driver use, standard bits in a ToughCase deliver more value per dollar.
