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10 bestMetal Drill Bitsof April 2025

112M consumers helped this year.

48% off

1

Bosch Professional 25-Piece PointTeQ HSS Twist Drill Bit Set (for Metal, ProBox, Drill Driver Accessories)
Bosch Professional 25-Piece PointTeQ HSS Twist Drill Bit Set (for Metal, ProBox, Drill Driver Accessories)

Bosch

10.0

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2

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

STROTON

10.0

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3

Hi-Spec 99pc Complete HSS Mixed Drill Bit Set. 1 to 10mm Titanium Coated High Speed Steel Drill Bits for Metal, Wood & Plastic. All In a Box Case
Hi-Spec 99pc Complete HSS Mixed Drill Bit Set. 1 to 10mm Titanium Coated High Speed Steel Drill Bits for Metal, Wood & Plastic. All In a Box Case

Hi-Spec

9.9

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4

Rennie Tools - Box of 10 x 5mm HSS Gold Cobalt Jobber Drill Bit Set For Stainless Steel, Hard Metals, Aluminium, Cast Iron, Copper. Twist Drill Bit Sets Supplied In A Box. 5mm Drill Bit Set
Rennie Tools - Box of 10 x 5mm HSS Gold Cobalt Jobber Drill Bit Set For Stainless Steel, Hard Metals, Aluminium, Cast Iron, Copper. Twist Drill Bit Sets Supplied In A Box. 5mm Drill Bit Set

Rennie Tool Company

9.6

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5

Milwaukee 4932352374 Drill, Set 19 Piece 1-10mm
Milwaukee 4932352374 Drill, Set 19 Piece 1-10mm

Milwaukee

9.4

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6

DEWALT DT7926-XJ EXTREME 2 HSS-G 29pc Drill Bit Set
DEWALT DT7926-XJ EXTREME 2 HSS-G 29pc Drill Bit Set

DEWALT

9.1

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8% off

7

Makita D-72877 TCT Drill Bit Set 5 Piece Straight
Makita D-72877 TCT Drill Bit Set 5 Piece Straight

Makita

8.8

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8

DEWALT DT5912 HSS-R - DIN 338 Jobber Drill Bit Set (13 Pieces)
DEWALT DT5912 HSS-R - DIN 338 Jobber Drill Bit Set (13 Pieces)

DEWALT

8.5

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9

Bosch 2607019442 10 Piece Metal HSS-R Drill Bit Set, Black
Bosch 2607019442 10 Piece Metal HSS-R Drill Bit Set, Black

Bosch

8.2

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10

Bosch Professional 13 pcs. HSS-G Metal Drill Bit Set (for metal, Ø 1,5-6,5 mm, Robust Line, Accessory Drill Driver)
Bosch Professional 13 pcs. HSS-G Metal Drill Bit Set (for metal, Ø 1,5-6,5 mm, Robust Line, Accessory Drill Driver)

Bosch

7.9

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A Guide to Selecting the Best Metal Drill Bits

When selecting metal drill bits, it's important to consider the type of metal you'll be drilling into, as well as the specific requirements of your project. Metal drill bits are designed to cut through various types of metal, and choosing the right one can make your work more efficient and precise. Understanding the key specifications will help you select the best drill bit for your needs, ensuring durability and effectiveness.

Material

The material of the drill bit is crucial because it determines the bit's durability and effectiveness in cutting through metal. Common materials include high-speed steel (HSS), cobalt, and carbide. HSS is suitable for general-purpose drilling in softer metals, while cobalt bits are more heat-resistant and ideal for harder metals like stainless steel. Carbide bits are the hardest and most durable, perfect for heavy-duty drilling in very hard metals. Choose the material based on the hardness of the metal you will be drilling.

Coating

Coatings on drill bits enhance their performance by reducing friction and increasing durability. Common coatings include black oxide, titanium, and nitride. Black oxide provides corrosion resistance and is suitable for general use. Titanium coatings increase the bit's hardness and heat resistance, making them ideal for drilling harder metals. Nitride coatings offer even greater durability and are used for high-performance applications. Consider the coating based on the frequency of use and the type of metal you are working with.

Size

The size of the drill bit is important because it determines the diameter of the hole you will create. Drill bits come in a wide range of sizes, typically measured in inches or millimeters. Smaller bits are used for precision work and creating smaller holes, while larger bits are used for bigger holes. Choose the size based on the specific requirements of your project, ensuring it matches the size of the screws or bolts you plan to use.

Point Angle

The point angle of a drill bit affects how it cuts into the metal. Common point angles are 118 degrees and 135 degrees. A 118-degree angle is suitable for softer metals and general-purpose drilling, providing a sharper point for easier penetration. A 135-degree angle is flatter and more robust, ideal for harder metals as it reduces walking and provides better control. Select the point angle based on the type of metal and the precision required for your project.

Flute Design

The flute design of a drill bit refers to the grooves that spiral around the bit, which help remove chips and debris from the hole. Standard flutes are suitable for most drilling tasks, while parabolic flutes are designed for deep hole drilling, providing better chip removal. Consider the flute design based on the depth of the holes you need to drill and the type of metal, ensuring efficient chip removal and preventing bit clogging.

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