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Drill Bit Sets for Wood vs Metal vs Masonry (2026 Comparison)
Picking drill bits optimized for wood, metal, or masonry comes down to coatings, bit geometry, and the sizes included. This head-to-head comparison looks at three popular 2026 options — a high-cobalt jobber set, a premium M35 cobalt set, and a full combo kit that adds masonry and driver bits. Read on to see how their coatings, sizes, and cases compare, who each is best for, and which to buy depending on the material you drill and the projects you tackle.
Quick Answer
For hardened metal work choose the COMOWARE Cobalt Drill Bit Set (ASIN B0CKL7QRWN) for its M42 cobalt construction and split-point design. If you want the most size variety and a premium build, the AMOOLO M35 31-piece set (ASIN B09MHD3QRM) is the better premium option; for an all-in-one household kit that includes masonry bits pick the EnerTwist 246-piece combo (ASIN B07CX4TPG2).
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Quick Comparison
Select 2-3 products to compare side-by-side
| Compare | Product | Rating | Price Tier | Key Feature | Best For | Action |
|---|---|---|---|---|---|---|
COMOWARE M42 21pc
|
(4.1K+ ratings) | Budget | 8% M42 cobalt construction | Hardened metal and stainless steel | Check Price | |
AMOOLO M35 31pc
|
(4K+ ratings) | Premium | Industry-grade M35 cobalt (5%) | Users who want more sizes and a warranty | Check Price | |
EnerTwist 246pc Combo
|
(3K+ ratings) | Premium | All-in-one 246-piece kit with masonry bits | DIYers who need a single kit for wood, metal, and masonry | Check Price |
1. COMOWARE Cobalt Drill Bit Set- 21Pcs M42 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Indexed Storage Case, 1/16"-1/2"
A high-cobalt M42 jobber set that excels on hardened metals and stainless steel — sharper and more heat-resistant than standard HSS. Smaller 21-piece range keeps the set focused; customers praise cutting performance and value but report mixed feedback on durability and the case.
Key Specs
- Material: 8% cobalt M42 high-speed steel
- Sizes: 21 pcs, 1/16"–1/2" jobber length
- 115/135 split point: 135 split point to prevent walking
- Finish: gold oxide finish, round straight shanks
Pros
- Better high-heat performance on hardened metals than EnerTwist titanium HSS
- Higher cobalt content (M42) than AMOOLO's M35 — more wear-resistant in many uses
- Top-rated for value and sharpness right out of the box versus similar-budget sets
Cons
- Case design gets mixed reviews and is less secure than EnerTwist's molded layout
- Durability feedback varies — some users report bits chipping or dulling faster than expected
Best For: Hardened metal and stainless steel
Check Latest Price on Amazon2. AMOOLO Cobalt Drill Bit Set 31Pcs (1/16"-1/2"), M35 High Speed Steel Metal Drill Bits Jobber Length for Hardened Metal, Stainless Steel, Cast Iron, Plastic and Wood
A 31-piece M35 cobalt set that expands the size range and includes a 90-day warranty. It drills cleanly and is recommended for a range of metals; compared with COMOWARE it offers more sizes but slightly less cobalt content, so results on extremely hard alloys can vary.
Key Specs
- Material: M35 high-speed steel with ~5% cobalt
- Sizes: 31 pcs, 1/16"–1/2" jobber length
- Geometry: Fully ground spiral groove; 135° split point prevents walking
- Warranty: 90-day hassle-free warranty
Pros
- More size options than COMOWARE (31 vs 21) for finer incremental drilling
- Premium kit feel and warranty gives better post-purchase support than EnerTwist
- Excellent cutting performance on mild steel and common shop metals compared with general HSS
Cons
- Lower cobalt percentage than COMOWARE's M42, so not always the best for the hardest alloys
- Some users report breakage on very thin sheet metal (22ga), so technique and heat control matter
Best For: Users who want more sizes and a warranty
Check Latest Price on Amazon3. EnerTwist Drill Bit Set, 246-Pieces Drill Bits and Driver Set for Wood Metal Cement Drilling and Screw Driving, Full Combo Kit Assorted in Plastic Carrying Case, ET-DBA-246
A full-combo 246-piece set that covers wood, metal, cement and fastener needs — excellent for household projects and portability. Coatings are titanium/black oxide HSS rather than cobalt, so it’s less ideal for continuous hardened-metal work but unbeatable for variety and jobsite convenience.
Key Specs
- Contents: 246 pieces including titanium & black oxide HSS bits, masonry bits, spade bits, nut drivers, and more
- Masonry: Includes 21 masonry bits sized 1/8"–3/8"
- Coating: Titanium coating and black oxide bits for durability
- Case: Molded carrying case with labeled holders to reduce mix-up
Pros
- Far more variety and accessories than either cobalt-only set — best for multi-material DIYers
- Better storage/organization and molded placeholders than COMOWARE's simple case
- Includes masonry bits that neither cobalt set includes, so better for concrete and brick
Cons
- Bits are general HSS/titanium coated rather than cobalt — less suited to prolonged drilling of hardened stainless or cast iron
- Build quality and durability are mixed per customers; some bits break under heavy use
Best For: DIYers who need a single kit for wood, metal, and masonry
Check Latest Price on AmazonWhich One Should You Choose?
If you drill hardened metals often → choose the COMOWARE Cobalt Drill Bit Set (B0CKL7QRWN). Its M42 cobalt alloy and split-point geometry make it the best pick for stainless steel and cast iron where heat resistance and edge retention matter.
If you want a premium, more complete range of metal sizes and post-purchase support → pick the AMOOLO M35 31-piece set (B09MHD3QRM). The extra sizes and 90-day warranty make it better for shop work and precision sizing, though M35 has slightly less cobalt than COMOWARE.
If you need one kit to cover wood, metal, and masonry for DIY and household jobs → grab the EnerTwist 246-piece combo (B07CX4TPG2). It contains masonry bits, spades, drivers and a molded case — the most versatile option for generalists.
Best for Specific Scenarios
- Hardened stainless or cast-iron repairs: COMOWARE M42 set because the higher cobalt content handles heat and wear better.
- Mechanic or workshop needing finer size increments: AMOOLO 31pc because the larger size range (31 vs 21) helps match fastener holes precisely.
- Household projects involving wood and concrete: EnerTwist 246pc because it includes masonry bits, spade bits, and driver accessories for broad jobsite use.
Frequently Asked Questions
Are cobalt bits worth it for occasional home use?
Yes — cobalt bits (M35/M42) hold up longer when you must drill metal occasionally, especially stainless and cast iron. For light wood or drywall work a coated HSS set may be cheaper, but cobalt gives more margin for tougher tasks.
Can I use masonry bits from the combo kit on concrete?
Yes — masonry bits in the EnerTwist kit are intended for brick, block and concrete. Use a hammer drill for thicker concrete and ensure you match bit diameter and drilling speed; masonry bits are not cobalt and won’t behave like metal bits.
How do I extend the life of my drill bits?
Use appropriate speed and light pressure on metal, back out often to clear chips, use cutting fluid for metal drilling, and store bits dry. Avoid overheating — if a bit glows, it’s lost hardness. Replace bits that show rounded cutting edges or excessive chipping.
How We Selected These Products
Our recommendations are based on data-driven analysis: we evaluated 100770+ products across 13951+ brands using a composite scoring system that weighs rating (40%), review volume (30%), price value (20%), and demand signals (10%). Every product is ranked by data, not opinions.
Last updated: May 06, 2026
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