10 Best Drill Bit Set for Drilling Hard Steel In The Us

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Last Updated - November 24, 2024

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GMTOOLS
GMTOOLS 29Pcs Cobalt Drill Bits Set, M35 High Speed Steel, 135 Degree Tip, Stainless Steel, Plastic and Wood with Metal Indexed Storage Case 1/16"-1/2"

9.5 materials Quality

9.3 lasts a long time

9.1 worth the money

Why we love it

Highly durable with enhanced M35 alloy material.

Comes in a comprehensive set with various sizes.

Sharp cutting edge for efficient drilling.
Main highlights

Precision Grinding Process
Precision grinding process ensures a clean surface and high grinding accuracy, universal round drill shank for versatile tool holding and secure clamping.

Ideal for Hard Metal Drilling
Perfect for drilling into hard metals, suitable for small projects, and comes with a wide range of bit sizes for various applications.

Praised for Sharpness and Durability
Customers frequently praise the sharpness and durability of the bits, especially their performance in drilling through hardened metals and tough materials.
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9.7

Exceptional

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Value for Money

2

Bosch
BOSCH CO21 21-Piece Assorted Set with Included Case Cobalt Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

48% Off

8.4 worth the money

8.2 lasts a long time

8.0 Long life

Why we love it

Hard wearing: made from cobalt for drilling into tough, abrasive materials like stainless steel and cast iron

Precise: no skate split point tip for clean, accurate holes and starts

Reliable: three flat shank design prevents slipping, especially on larger bits
Main highlights

VERSATILITY: Includes laser-etched marking to provide clearly marked bit diameter. Included bit sizes: 1/16 in., 5/64 in., 3/32 in., 7/64 in., 1/8 in., 9/64 in., 5/32 in.,11/64 in., 3/16 in., 13/64 in., 7/32 in., 15/64 in., 1/4 in., 5/16 in., 3/8 in., 1/2 in.
TOUGH: The Bosch CO21 Drill Bit Set is manufactured from cobalt for drilling in hard and abrasive materials such as stainless, cast iron, and high-density metal. Also useful for general drilling in light-gauge metal, wood, and plastic.
RELIABLE: The three-flat shank design promotes better grip and guards against slipping on bits 3/16 in. and larger
PERFORMANCE: Designed for very high drilling temperatures for superior performance in stainless steel. Bosch Cobalt Metal Drill Bits are solid, reliable, and provide 4X longer life than standard high-speed drill bits.
ACCURACY: Featuring a no-skate split-point tip for clean, precise holes and accurate starts.
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9.6

Exceptional

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3

Bosch
BOSCH CO14B 14-Piece Assorted Set with Included Case - Cobalt M42 Metal Drill Bits with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, and Light-Gauge Metal

11% Off

8.9 Sheerness

8.7 worth the money

8.4 lasts a long time

Why we love it

M42 Cobalt drill bit is designed for durability and resistance to high heat

Contains 8 Cobalt alloy for 10x life compared to standard bits

Withstands high temperatures for extended periods
Main highlights

Thick web-helix design – provides additional stability in tough applications
Surface-hardened tip – penetrates tough abrasive materials
Includes – 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 1/2"
High-heat resistant bits – withstand high-temperature applications for extended periods of time
Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits
Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum
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9.3

Excellent

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4

DEWALT
DEWALT Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-Piece (DW1361)

20% Off

9.9 Simple to take off

9.5 Simple to use

9.5 Durability

Why we love it

Connectable storage system optimizes space efficiently.

Clear lid allows easy content visibility.

Patented design ensures easy bit removal.
Main highlights

Connectable Accessory Storage System
DEWALT drill bit set has a connectable accessory storage system to optimize storage space and a clip latch for secure closing.

Ideal for Metal and Wood Drilling
Perfect for professionals and DIY enthusiasts, suitable for drilling through wood, metal, plastic, and even tire repair.

Praised for Durability and Performance
Customers frequently praise the drill bits for their durability, non-slipping design, and ability to cut through tough materials efficiently.
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9.0

Excellent

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5

DEWALT
DEWALT Drill Bit Set, 14-Piece, 135 Degree Split Point, For Plastic, Wood and Metal (DWA1184)

41% Off

9.3 lasts a long time

9.3 worth the money

9.3 Durability

Why we love it

The split point 135 degree tip reduces walking for accurate starts.

The tapered web design provides extreme durability to resist breakage.

The black and gold coating helps prevent rust and wear.
Main highlights

Key Features
135° Split point tip, High-Speed Steel, Black and gold coating for rust prevention, Tapered web design for durability, 3-Flats shank.

Ideal Use Cases
Perfect for drilling in plastic, wood, and metal; great for DIY projects, construction, and professional work.

Customer Reviews Highlight
Most praised for its durability and ability to prevent walking, ensuring precise drilling.
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8.7

Very Good

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6

DEWALT
DEWALT Drill Bit Set, Titanium Nitride Coated, 14-Piece (DW1354)

33% Off

9.7 Maneuverability

9.5 Flexibility

9.3 worth the money

Why we love it

The DEWALT drill bit set is a great way to keep your drill bits organized and stored away.

The drill bits are easy to remove and the clear lid makes it easy to see whats inside.

The set comes with a clip latch for secure closure and fits inside the Small and Medium ToughCase plus sold separately .
Main highlights

Small Bulk Storage size fits inside the Small and Medium ToughCase plus (sold separately) - Ideal for organizing loose bits
Proprietary PILOT POINT tip delivers speed and clear, burr-free holes which help reduce bit walking
Patented web taper increases the rigidity of the bit to decrease potential for bit breakage
Patented bit-bar design of the drill bits allows easy removal of bits and customizable placement
Ideal for metal, wood, and plastic
DEWALT drill bit set comes with clip latch for secure closing
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
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8.6

Very Good

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7

HURRICANE
230 Pieces Titanium Twist Drill Bit Set, 135° Tip High Speed Steel, Size from 3/64" up to 1/2", Ideal Drilling in Wood/Cast Iron/Aluminum Alloy/Plastic/Fiberglass, with Hard Storage

8.7 worth the money

8.0 lasts a long time

8.0 Giftable

Why we love it

HSS material for strength and durability

Comes in plastic storage box

135 fast cutting point for quick penetration
Main highlights

Key Features
High-speed steel, titanium coating prevents rust, includes comprehensive size range for versatility, and comes with a durable storage box.

Ideal Use Cases
Perfect for drilling into Wood, Cast Iron, Aluminum Alloy, Plastic, Fiberglass. Ideal for DIY projects, professional work, and craft applications.

Customer Praise
Most reviews highlight the drill bits` durability, sharpness, and the convenient storage box as their favorite features.
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8.5

Good

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8

Yougfin
YOUGFIN 29 Pieces Carbide Drill Bits, High Speed Steel with Black and Gold Finish, Metal Jobber Drill Bit Set for Hardened Steel, Plastic, Wood with Indexed Storage Case, 1/16 Inch-1/2 Inch

Why we love it

Ideal for drilling wood, plastic, and some lightweight metal materials

High speed steel and gold oxide coating for durability

135 degree split point and twist design for more efficient drilling
Main highlights

【Product Feature】: Twist drills are indicated in sizes. Assortment comes with a combined 29 sizes added：1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8"，25/64"，13/32"，27/64"，7/16"，29/64"，15/32"，31/64"，1/2"
【Multiple Application】：Perfectly suitable for drilling wood, plastic, and some lightweight metal materials. Drill bit holder with size index for easy induction and arrangement, and a portable metal case are both included
【High Quality Material】：Manufactured from high-speed steel and coated in gold oxide, Yougfin twist drill bits are able to withstand friction and heat so you can drill continuously without the bits heating up
【Application & Tip】：Please keep the bit perpendicular to the material during operation to prevent it from breakage. ***Tip***：If you have any questions about Yougfin products, please feel free to contact us
【135-Degree Split Point & Twist Design】：The split point design increases the cutting edge on the tip, and the blunter 135° angle means more of the cutting edge touches the surface sooner. The grooves on the sides of the bits’ twisted shanks will bring metal shavings up and out of the hole as you drill
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8.4

Good

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9

STROTON
STROTON 5% Cobalt Drill Bit Set (1/16-3/8 Inch, 21PCS) for Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood, M35 Hss Heavy Duty Twist Steel Drill Bits Index.

21% Off
Main highlights

【Sturdy and Durable Metal Case】Different from the General Metal Case, This Drill Bits Case is Made of Q235 Cold Rolled Steel Plate, which Can be Opened and Closed Smoothly to Take the Drill Bits out at Any Time.
【Split Point Design with Unparalleled Precision】This Heavy Duty Work Drill Bits Kit is Suitable for Steel, Stainless Steel, Cold Rolled Steel, Hard Metals, Aluminum Alloy, Hard Wood, and Plastic, and Drilling Out Bolts Studs and Screws.
【Premium 5% Cobalt Steel with 68 HRC】 This Fully Ground Cobalt Drill Bits Set are Made with 5% Ture Cobalt. Although the Cost and Price are Slightly Higher, With a Useful Life,Heat,Wear and Chip Resistance up to 3 Times Longer than the Average Product.
【3X Efficiency + 3X Tool Life】This Cobalt HSS Drill Bits Set is Typically Capable of Running 3 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.
【21 Pieces Jobber Length Industrial Drill Bits Includes】:1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 15/64, 1/4, 17/64, 9/32, 19/64, 5/16, 21/64, 11/32, 23/64, 3/8 [DIA 1/64 Inch Increments]
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8.3

Good

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10

PLATINUMEDGE
Metric 230 Pieces Titanium Twist Drill Bit Set, 135° Tip High Speed Steel, Size from 1mm up to 10mm, Ideal Drilling in Wood/Cast Iron/Aluminum Alloy/Plastic/Fiberglass, with Hard Storage

26% Off
Main highlights

WIDELY USED: The 135° fast cutting point is automatically centered and penetrates quickly with less pressure, the drill kit meets all your requirements, ideal Drilling in Wood/Cast Iron/Aluminum Alloy/Plastic/Fiberglass
STORAGE: Supplied in a plastic storage box for easy storage and transportation
SIZE INCLUDES: 32 pcs 1mm, 30 pcs 15mm, 30 pcs 2mm, 30 pcs 25mm, 20 pcs 3mm, 20 pcs 35mm, 12 pcs 4mm, 12 pcs 45mm, 12 pcs 5mm, 8 pcs 5mm, 4 pcs 6mm, 6 pcs 65mm, 4 pcs 7mm, 2 pcs 75mm, 3 pcs 8mm, 2 pcs 85mm, 1 pcs 9mm, 1 pcs 95mm, 1 pcs 10mm
PROCESS TREATMENT: Titanium coated surface prevent rusting,which increase the hardness of the drill bit and reduces heat buildup, make the twist drill bit more wear-resisting for longer life
PREMIUM MATERIAL: Manufactured from 4241 high speed steel for strength and durability
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8.1

Good

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10 Best Drill Bit Set for Drilling Hard Steel In The Us

1

GMTOOLS 29Pcs Cobalt Drill Bits Set, M35 High Speed Steel, 135 Degree Tip, Stainless Steel, Plastic and Wood with Metal Indexed Storage Case 1/16"-1/2"

Why we love it

2

BOSCH CO21 21-Piece Assorted Set with Included Case Cobalt Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

Why we love it

3

BOSCH CO14B 14-Piece Assorted Set with Included Case - Cobalt M42 Metal Drill Bits with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, and Light-Gauge Metal

Why we love it

4

DEWALT Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-Piece (DW1361)

Why we love it

5

DEWALT Drill Bit Set, 14-Piece, 135 Degree Split Point, For Plastic, Wood and Metal (DWA1184)

Why we love it

6

DEWALT Drill Bit Set, Titanium Nitride Coated, 14-Piece (DW1354)

Why we love it

7

230 Pieces Titanium Twist Drill Bit Set, 135° Tip High Speed Steel, Size from 3/64" up to 1/2", Ideal Drilling in Wood/Cast Iron/Aluminum Alloy/Plastic/Fiberglass, with Hard Storage

Why we love it

8

YOUGFIN 29 Pieces Carbide Drill Bits, High Speed Steel with Black and Gold Finish, Metal Jobber Drill Bit Set for Hardened Steel, Plastic, Wood with Indexed Storage Case, 1/16 Inch-1/2 Inch

Why we love it

9

STROTON 5% Cobalt Drill Bit Set (1/16-3/8 Inch, 21PCS) for Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood, M35 Hss Heavy Duty Twist Steel Drill Bits Index.

10

Metric 230 Pieces Titanium Twist Drill Bit Set, 135° Tip High Speed Steel, Size from 1mm up to 10mm, Ideal Drilling in Wood/Cast Iron/Aluminum Alloy/Plastic/Fiberglass, with Hard Storage

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