Metal drill bits are made specially to bore through metallic surface. They are also known as high-speed steel (HSS) bits for, and usually come in black color.
They are much durable and more expensive than regular drill bits. Pierce through woods and plastic as well, but they are usually used on metal surfaces. Let's take a look on the best drill bits for metal.
Facts to consider when buying drill bits
Material: Try to purchase a drill bit that has 5-8% cobalt inside it. Such amount of Cobalt makes the bit more strong and efficient.
Length: Durability depends on length. The toughness of the bit decreases when the length is increased. That’s why shorter cobalt bits are a good choice as they withstand Breaking twisting and spinning.
Size: Make sure to pick a set that includes drill bits of various sizes. Availability of different size can ease up your project.
Tip style: Penetration capacity depends on the tip style. V-Point, Split point, brad point, tapered point and fish points are useful against metal.
How to Choose a drill bits?
Types of drill bit
Types are based on two facts – Material used in the bit, and the coating over the bit.
Material Based type
High Carbon Steels: Drill Bits are made of both high and low carbon steel, but for different purposes. However, Only the High Carbon Steel is used to make drill bits for cutting metal.They have a better temper than low-carbon steels, so they require less maintenance, like sharpening, and hold their effectiveness and last longer.
High-Speed Steel: High-Speed Steel is a particular type of carbon steel that can withstand high temperatures while maintaining constructional integrity, specifically the hardness.
Coating Based type
Black Oxide: Black Oxide drill bits are ver economical and provide corrosion protection. It increases tempering, relieves stress, reduces chip welding and galling, aids in retaining lubricants.
Titanium Nitride (TiN): This drill bits are comparatively expensive but very effective. Besides increasing hardness, they also provide production increasing thermal barrier and longer lifetime. TiN also gives you all other facilities same as black and bronze oxide.
Top 10 Drill Bit Comparison
High Speed Steel
1250 Duratek Nylon
1. DEWALT DW1361 Drill Bit Set Review (Best titanium drill bits for metal)
Starting this list with the most modern set of pilot point durable drill bits, coated with Titanium. This 21 piece bit set will cover all your household needs. They have a good image for making clean holes in the surface.
Titanium Pilot Point is a unique type of tip that has three edges to cut. The center edge is taller than the side ones. When the tip is covered with Titanium, it is called Titanium pilot point. This type of drill bit lasts longer than usual twist drill bits.
2. Irwin Tools Drill Bit Set Review (Best cobalt bits for wood and metal)
These drill bit set got positive reviews from everyone who used it. The unique rubber-molded case is a great addition to the set. Irwin is a popular company who makes the best drill bits for metal.
If the set accidentally falls from your hand, the bits won’t be damaged at all due to the rubber molded case.
3. Black & Decker BDA91109 Cheap Drill Bit Set
This set is mostly suitable for home base projects.In a comparatively low price, you get a bunch of 1-2 inches bits which are a complete pack for your need.
Bits are sometimes very fragile. That’s why they should be kept in a hard storage box. A portable storage box also allows taking them anywhere quickly and keeps the bits safe from falling off and losing.
4. Craftsman Drilling and Driving Set Review (Best all purpose driver bit set)
This Craftsman set has a total of 100 driving, and drilling pieces including Drill stops, bits, Allen key, nut drivers, spade bits, stubby screwdriver, driver bits, and folding case.
Many cases can’t keep the pieces inside stacked in their places. But this storage case has a separate compartment that allows the bits and other small pieces to stick to its area.
5. Neiko Left Hand Drill Bit Review (Best left-hand drill bits)
Last but not the least, it is the best left-hand drill bits set in the market. The bits are coated with Titanium Nitride which makes them extremely durable and suitable to work in any situation.
Titanium Nitride (TiN): Titanium nitride aka TiNite is an extremely hard ceramic substance. They are often used as a coating on titanium alloys, carbide, Aluminum, and Steel components to improvise the substrate's properties.
How to Drill wood, metal and concrete?
In the end, we decided to give you one product we think appropriate for you. But this has been tough for us because we have all these great drill bit sets on this list.
After discussing with many professionals and practically using all the bits in this review, we decided to go with Neiko 10037A Left Hand Drill Bit Set because it is great for most drilling purposes. It’s an extraordinary combination of M2 High-Speed Steel for highest durability, 135-degree Split performance Tip and TiN coating for better heat resistance. For the unmatched efficiency in drilling metal surface, Neiko would be the perfect deal for you.