The Best Cobalt Drill Bit Set (Review) in 2023 | Autance

The Irwin Drill Bit Set offers 29 pieces ranging from size 1/16 inch to 1/2 inch. Made from cobalt, these metal drill bits have been created with heavy-duty materials for ultimate strength and durability. You can use these drill bits to drill through tough metal. In fact, you can even use them to drill through hardened steel.

Another nice feature of these drill bits is the design. They have been specifically designed with a 135-degree split point tip, so a drill bit “walking” across the surface is a thing of the past.

This 29-piece drill bit kit is presented in a metal index case, which gives you easy access when you need to access the pieces quickly. The case also features an outer rubber molding, which prevents damage if you drop the kit.

DEWALT is a renowned brand when it comes to strength and durability, and these drill bits offer no exception.

We’ve only included the very best drill bit sets in our list and mentioned brands that are well known for their superior quality. This 14-piece kit features cobalt dewalt drill bits that have been designed specifically for maximum speed. This means that not only are these drill bits going to do the job well, they’re also going to be a good investment for your tool box.

The drill bits have been designed with a pilot point and split tip, giving the user more control and preventing the dreaded drill “walk” that can often occur with lesser quality parts. Using these drill pieces on tough metal shouldn’t be a problem either as these parts have been specially designed for strong metals and maximum speeds.

When compared to the average HSS drill bit, the Migiwata cobalt steel bits will provide you with significantly more strength and a much longer life span.

These drill bits have been made from M35 cobalt steel with extra molybdenum to create an extra-strong alloy that is not only heat resistant but cuts faster too. You won’t have to worry about the metal drill bits “walking” either as the 235-degree cut points penetrate fast with a lot less pressure applied. These drill pieces have a straight shank too, which will enable you to get a firm grip and center the drill bit more accurately.

This drill kit includes 13 pieces of varying sizes from 1.5mm to 6.5mm and is perfect for use with heavy-duty metals, such as cast iron and stainless steel. One of the highlights of this product is if the user isn’t 100-percent happy with the purchase then the company offers a replacement or full refund. Now that’s what we call excellent customer service.

If you’re looking for a product that is built to last a long time and is suitable for drilling large holes into sheet metals, wood, plastic, aluminium, stainless steel and copper then you probably don’t need to look any further!

This 8 piece deming and silver drill bit set has been constructed from high-quality cobalt high speed steel, which means not only is it super strong, but it’s also fast and self-centering due to the 135 degree split point tip too.

What sets this product apart from the others is that the drill bits have been coated in a black nitride and gold titanium finish. The reason for this? This coating will hold lubricant better for a smoother drilling experience and is said to be 80% more durable and corrosion resistant than a regular finish with black enamel. Lastly, the final feature that we liked about this product was the sturdy aluminum case for ease of storage and carrying.

This portable cobalt drill bit set actually contains 29 drill bits in a wide range of sizes, which is surprising as the container is so small and lightweight. No clunky case here, this little case provides an ingenious clip so you can hang the drill index on your work belt for ease of use. The case is one of the best we’ve seen as it’s easy to pack and can be stored anywhere.

Enough about the case though…it’s the drill bits that count, right? These 29 pieces have been manufactured from cobalt steel with a gold oxide finish which lubricates the drill bit and provides essential wear resistance. With a drill set like this you are guaranteed a more extended life than other drill bits which don’t contain cobalt. Another nice feature of these drill bits is their 235 degree self-centering split point. This means that the drill bits can penetrate hard material without a pilot hole and it also produces smaller chips.

 Presented in a handy plastic carrying case, this Craftsman Professional Drill Bit Set has been specially designed to withstand use on most metals, including hard metals. You can expect good quality here too as the drill bits have been made from the best quality titanium, black oxide and cobalt materials and are made to last.

The drill bit ranges from 1/16 inch to ⅜ inch, which gives you a nice variety of drill bits for all your drilling needs. They have all been designed with a split point head too, which means that they drill on contact and eliminate “walking”. We found this set to be good value for money as it provides 21 pieces in a reusable and portable case.    

If you’re looking for a drill bit set from a reliable brand then this Bosch CO21 kit is a good choice. Manufactured from tough cobalt, these drill bits are ideal for use with abrasive materials such as stainless steel, cast iron and high-density metals. They can also handle every day drilling such as wood, plastic and light-gauge metals too.

The drill bit set has been designed with split-point tips to minimise “walking” and the bits can handle high drilling temperatures in stainless steel. If you’re looking for the best drill bits for metal then Bosch won’t let you down. In fact, the company are that confident about their product, that they have claimed that their cobalt metal drill bits will last x 4 times longer compared with standard drill bits.

Could these be the toughest cobalt metal drill bits on the market we wonder? Drill Hog claims that the melting point of the special cobalt M42 steel which they have been manufactured from is 2,853 degrees Fahrenheit. Which is pretty impressive stuff!

These drill bits mean business and they can drill through the toughest metals such as stainless steel, grade 8 bolts and spring steel. The pieces have been heat treated for extra hardness and have a 135 degree split point tip to prevent “walking” and a tri-flat shank which additionally prevents “spinning” in the chuck.

Another thing we liked was that the Drill Hog Drill Bit Set comes with a lifetime warranty which means that they will replace any broken parts, should any breakages occur.

Compared to average high-speed drill bits, a cobalt steel set like this will last significantly longer. It’s worth the investment. This kit contains 29 parts ranging from 1/16 inch to 1/2 inch, and the parts have been manufactured with a gold oxide finish that is well known to lubricate the surface to prevent wear resistance with certain ferrous metals.

These drill bits are strong and self-centering with a 135-degree split point. This means that there’s no need for a pilot hole, and the chips it produces are smaller and therefore reduce clogging.

Another unique feature is that the webbing is extra thick for increased strength and rigidity.

To conclude our best drill bit compilation we thought we’d include this combined screw extractor and left hand drill bit kit. Not only is this made from cobalt fortified high-speed steel but it’s also perfect for left-handed people that need adapted tools.

This is a super durable product which guarantees a long lifespan. Ideal for professional or DIY jobs around the house, this kit can extract broken screws, studs, bolts and other fittings as well as provide tough drill bits for most metals and materials.