Updated: 19 May 2026

10 Best cobalt drill bit set dewalts of 2026

Explore up to 12% Off

Updated: 19 May 2026

#1

Best Choice

Dewalt DT7926-XJ Toughcase Extreme 2 HSS-G Metal Drill Set 29Pc 1-13mm, Gold

9.6

DEWALT

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Main highlights

Perfect for drilling in steel, alloyed and non alloyed sheet metal or thin materials

Gold ferrous oxide coating prevents overheating for longer bit life

Each bit has a no spin shank eliminating the frustration of bit spinning at the chuck
#2

Best Value

DEWALT DW1361 Titanium Pilot Point Drill Bit Set, 21-Piece, Black

9.5

DEWALT

-12%

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Main highlights

Titanium construction for long-term performance

Starts on contact for quick work and clean holes

No-spin shanks to prevent the bit from slipping in the drill chuck

-12%
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#3

DEWALT DWA1240 Pilot Point Industrial Cobalt Drill Bit Set (14 Piece)

9.4

DEWALT

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Main highlights

Pilot point and split tip design

No bit walking - more user control

Designed for maximum speed and life
#4

Hymnorq 15-Piece M35 Cobalt Drill Bit Set, Metric 1.5 to 10mm, 5% Cobalt HSS for Drilling Hard Metal Stainless Steel Cast Iron, Fully Ground Jobber Length Bits with 135° Split Point Tough Indexed Case

9.3

Hymnorq

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Main highlights

TRUE M35 GRADE COBALT STEEL: Manufactured from premium High-Speed Steel containing 5% Cobalt (HSS-Co), these bits are heat-hardened to cut through tough abrasive materials. They offer significantly higher heat resistance and wear durability compared to standard HSS bits, making them the ultimate choice for drilling into stainless steel, cast iron, and titanium alloys.

PRECISION 135° SPLIT POINT: Equipped with a 135-degree self-centering split point, these bits bite into the material immediately upon contact. This active cutting tip prevents "walking" or wandering across the work surface and eliminates the need for a pre-punch pilot hole, ensuring accurate and clean starts every time.

FULLY GROUND & EFFICIENT: Unlike roll-forged alternatives, our bits are fully ground for precise dimension accuracy and concentricity. The precision-engineered dual twist flute design ensures rapid chip removal, effectively reducing friction and heat buildup for a smoother, cooler drilling process.
#5

Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)

9.1

STROTON

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Main highlights

This Cobalt Drill Bit is Typically Capable of Running Three to Five Times Faster.Despite the Higher Price,the Cost Per Hole When Using Cobalt Drill Bit Will be the Lowest,Since It Can Produce So Many More Holes.

Premium M42 8% Cobalt Steel ,68-70 HRC (Rockwell Hardness Scale) ,Usually Give the Best Heat,Wear and Chip Resistance and Long Tool Life.

3 Steps Design for Cutting through Stainless Steel,Hard Metals,Aluminum,Plastic.
#6

DEWALT DWA1184 14Piece Set Black Oxide Coated HSS Twist Drill Bit Set

9.0

DEWALT

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Main highlights

Parabolic flute design improves chip ejection in metal and wood drilling applications

Black oxide coated for greater wear resistance

135° split-point drills on contact and prevents walking
#7

YUENTOEN 13PCS Cobalt Drill Bit Set 1.5mm-6.5mm, M35 HSS Twist Drill Bits for Carbon Steel, Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood

8.9

YUENTOEN

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Main highlights

Self Centering: The 135 degrees quick-cut points are self-centering and penetrate quickly with less pressure; Twist drill bit kit Will not walk or wander

M35 Cobalt Steel Twist Drill Set: 1.5mm, 2mm, 2.5mm, 3mm, 3.2mm, 3.5mm, 4mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm, 6.5mm; 13PCS packed in a plastic bag for easy usage and store

High Quality: Our Twist Drill Bit HSS are manufactured from M35 cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to 12 times when compared with an average HSS drill bit
#8

Hymnorq M35 Cobalt Steel Drill Bit Set, 19-Piece Metric (1mm-10mm), HSS-CO Jobber Bits with 135° Split Point & Metal Case, Professional Kit for Hardened Metal, Stainless Steel, Cast Iron

8.7

Hymnorq

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Main highlights

PREMIUM M35 COBALT STEEL – Crafted from High-Speed Steel with 5% Cobalt (HSS-CO), this alloy achieves a Rockwell Hardness of up to 67. It offers superior heat resistance and wear durability, lasting up to 12X longer than standard HSS bits, making it the ultimate choice for heavy-duty drilling.

PRECISION 135° SPLIT POINT – Features a self-centering 135° split point geometry that bites into the material immediately. This prevents "walking" or wandering on smooth surfaces, eliminates the need for a center punch, and reduces the pressure required to penetrate.

MASTER OF HARD METALS – Specifically engineered to cut through tough, high-tensile materials. It performs exceptionally well on abrasive metals like stainless steel, cast iron, and titanium alloys, while also slicing effortlessly through softer materials like aluminum, wood, and plastic.
#9

DEWALT DW1354 14-Piece Titanium Drill Bit Set, Yellow

8.6

DEWALT

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Main highlights

Patented bit-bar design of the drill bits allows easy removal of bits and customizable placement

Connectable accessory storage system to optimize storage space of the drill bits for wood, metal and plastic

Clear lid allows you to easily see contents at glance
#10

DEWALT DWA1181 21-Piece Set Black Oxide Coated Hss Twist Drill Bit Set

8.5

DEWALT

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Main highlights

Parabolic flute design increases chip ejection in metal and wood drilling applications

DEWALT 21-pack black oxide twist drill bit set is ideal for general-purpose drilling materials like metal, hardwood, softwood, PVC and fiberglass

Black oxide coating helps resist corrosion and increase durability, so your drill bits last longer