Last Updated on May 19, 2020 by builder Aaron Barnett
Ultimate drill bit review covering everything from the best metal drill bits, speed timber drill bits, hole-saws, step drill bits, metal drill bit sharpening, and the best drill driving sets.
Nothing is more annoying than all these drill bit sets that have so many bits that will never be used. These same drill bit sets with over 100 bits don’t even the basic bits you need, that then cost the top dollar to buy individually that you then can’t even fit in this big box you have.
Flicking through literally 100s of drill bit sets, I have rounded up the best 20. What are the best drill bits? You can get the best drill bits sticking to both Irwin And Milwaukee!
This review has been separated into 7 sections,
- Bet metal drill bits
- The best tool to sharpen drill bits
- Best hole saw kit (wood and metal)
- Best spade bits
- Best speed timber drill bits
- Best drill driver sets
- Best step drills
Best Drill Bits
#3 BEST DRILL BIT SET FOR STEEL
#4 BEST DRILL BITS FOR STEEL AND WOOD
DEWALT Steel Drill Set (21 Piece)
#5 BEST WOOD AND STEEL DRILL BIT SET
Drill America Cobalt Steel Drill Bits (29 Piece)
#6 BEST STEEL AND WOOD DRILL BIT SET
Cobalt Drill Bit Set (29 Piece)
The Best Drill Bit Sharpener
Best Hole Saw Kits
#3 BEST DEEP HOLE SAW KIT
DEWALT 14-Piece Hole Saw Kit
#4 WOODEN HOLE SAW SET
Hole Saw Kit, EONLION 16 Pieces
Best Screw Driving Sets
#3 BEST DEWALT IMPACT DRIVER SET
DEWALT DWA2T40IR IMPACT READY, 40-Piece
#4 BEST MAKITA IMPACT DRIVER SET
Makita B-52370 Impact Gold Torsion Bit Set (38 Piece)
Best Fast Timber Drill Bits
Best Step Drill
Drill bits are useful for anyone who needs to do any kind of building, construction, repair, or DIY work. There are so many different drill attachments you can use in your cordless drill to drive screws and drill different sized holes in different materials.
If you do a lot of drilling, you will probably be going through drill bits like crazy. It is worth spending for the best quality drill bits you can buy. Even though they are more expensive, they tend to last longer, so you won’t have to keep buying a new set every couple of weeks.
Don’t forget to get a good, sturdy case as well. In addition to keeping you from losing bits, they will also help you transport your equipment and make it easier for you to find the bits you need when you need them.
If you are going through a lot of bits you might want to get a drill doctor to resharpen your drill bits when they get blunt.
Drill Bit Features
Metal Drill Bits
Metal drill bits are really the only serious choice, whether you are a hobbyist/DIY’er, or a professional builder/steelworker. Standard wood only drill-bits might work for wood, plastic, and softer metal, but they will be pretty much useless for anything else.
On the other hand, metal drill bits will work equally well for softer materials and steel, so you can use them for pretty much anything. There are a few different varieties of metal drill bits. The most popular are made of cobalt, giving them the ability to bore through aluminum and stainless steel.
There are also drill bits that have black oxide coatings. These are very durable, stay sharp for longer, and can bore through most any type of material.
Titanium-coated drill bits are also very durable and produce very little friction. For sheer strength and durability-though, carbide-tipped drill bits are the ones to beat. These stay sharp for much longer than any other type of drill bit and are ideally suited for drilling holes in tile and masonry.
Irwins cobalt drill bits are best for drilling metal and wood (even drill stainless steel)
Ever wondered how builders and woodworkers drill perfectly round and smooth holes in wood? In most cases, they probably used a hole saw for the job. These are cylindrical blades with a rigid cutting-edge that work pretty much like a rotating saw. When attached to a typical drill, they can be used to create knob holes indoors or cut holes for wiring.
Like drill bits, hole saws come in a variety of sizes. The larger the diameter of your hole saw is, the larger the holes you will be able to cut. Most hole saws have a pilot bit that helps keep the blade centered.
Milwaukee has the best hole-saw kit for quality, case, and variety of bits.
Auger Bits And Speed Timber Drilling Bits
Irwin spade bits are must-have as they are high-quality, cheap to get and let you drill timber like a wood router cant. Ruff but very quickly they can bore checkouts in framing timber.
Auger bits look pretty much like twist bits, with the main difference being a large flute that clears out wood or metal chips from the drill hole. They also have screw tips that help keep the drill bit centered.
Like spade bits, auger bits are best suited for wood and soft materials. They do make cleaner and smoother holes than spade bits and don’t end as much torque to operate.
If you are in the market for auger bits, look into the Irwin brand. They are inexpensive, very versatile, and their performance is flawless. They will also keep you from damaging your more expensive drill bits.
For quick and easy drilling into wood, consider purchasing a set of High-Speed Steel (HSS) bits. These will drill into a wide variety of materials including wood, PVC, fiberglass, and even aluminum.
The Irwin speed bore drill bits will save the wear and tear on your drill as they will instantly drill through timber like butter.
Drill Bit Sharpeners
No matter how strong and durable your drill bits are, they will get dull at some point, particularly if you often work with steel or other hard materials.
You can use an ordinary bench grinder for sharpening, but something like a Drill Doctor is a more convenient and fail-proof solution. The best models can sharpen pretty much any type of drill bit, and they are very easy-to-use even without prior experience.
Sharpening your drill bits will spare you the expense of having to buy a new set of drill bits every time yours wear out. Over time, you can save a considerable amount of money by purchasing a bit sharpener.
The Drill Doctor 750X can sharpen the widest range of drill bits to save you replacements
Drill Bit Features
Irwin and Milwaukee drill bits are among the best made and most reliable drill bits available. Most Irwin drill bits are ideally-suited for drilling into metal, and the best are even able to penetrate hardened steel fairly easily. The cobalt alloy construction is resistant to heat and abrasion, and retain their sharpness for a long time.
Milwaukee matrix carbide drill bits are equally durable, and they are especially resistant to impact. These drill bits are designed to absorb peak torques, which prevent them from wearing out too quickly.
The materials from which the drill bits are made have a lot to do with their durability. Cobalt is an especially reliable and hardy material, and you will find that drill bits made from this material are extremely hard and long-lasting. Cobalt also dissipates heat quickly, which reduces the risk of overheating when drilling through metal.
Consider purchasing drill bits with a black oxide coating. These are very resistant to corrosion and will bore through most any material efficiently.
Titanium-coated drill bits are even more resistant to friction, and they stay sharp even with frequent use. For maximum longevity though, carbide-tipped drill bits are among the most durable you can buy.
The length of your drill bit will affect how efficient and how effective it is for specific tasks. Shorter drill bit’s tend to be stronger than long bits, and they are less likely to go off-center. However, they may not provide the depth needed for certain jobs.
Size is an equally important factor. Drill bit size is usually measured in fractional inches, wire sizes, letter sizes, and metric decimal millimeters. It is a good idea to get drill bits in a few different sizes so you can drill holes of varying diameters.
Drill bits also come in different tip styles. Twist drill bits usually come with standard drill points, which are suitable for most general drilling tasks. You may also see twist drill bits with split drill points, which ensure more stable operation and better penetration. Then there are V-point bits, which are used for drilling thru-holes in sheet metal, brad point bits, which are useful for drilling blind holes, fishtail bits, which are ideally suited for drilling at an angle, and taper point bits, which are used for drilling tapered holes.
Counter-bore drills come with tips that have flat blades that extend from the center to the outer edge. They may come fitted with outer spurs or “teeth” which help prevent chipping and splintering.
Countersink drill bits also have similar flat blades that extend from the center to the outer edge. These have angles that range from 60° to 120°.
The best drill bits can be quite expensive, but spending on the cheapest bits is rarely a good idea. Cheap drill bits tend to break easily and lose their sharpness quickly, so you will have to buy new bits more frequently. Even if you have a drill bit sharpener, cheap bits will require more frequent sharpening and will become totally useless sooner or later. Get the best drill bits you can buy, and you will get longer use out of them even if you have to sharpen them periodically.
Who Uses Drill Bits The Most
Builders, typically use countersink bits to create conical holes. These enable the screwing in of fastener heads that are flush with the surrounding surface. These types of bits also create an angled hole that matches the shape of the screw head. This prevents splitting when the screw is tightened.
Steel fabricators, often use twist bits to drill into metal. They may also use countersink bits to create holes that allow screws to sit flush with the surface of the surrounding metal. For drilling into sheet metal, steel fabricators usually use step bits. These have a stepped design that allows the user to drill holes of different diameters without having to change drill bits.
DIY’ers will find plenty of uses for brad point bits, which are especially useful for drilling into wood. These types of bits can drill very cleanly, and they are able to drill holes with very smooth edges and flat bottoms due to their sharp cutting points. They also have center spurs that aid in positioning and keep the drill centered.
May also use twist bits for drilling into metal when they need to attach fixtures to plumbing systems. More frequently, they use masonry bits that can efficiently cut through brick, mortar, stone, and concrete. Carbide-tip masonry drill bits are especially useful for this purpose, particularly those with deep fluting.
Electricians use for fast speed drilling, timber auger bits, which they can use to drill holes for pass-through wiring. These are especially for cases wherein the wiring has to be concealed. And running wires through walls is a common repetitive task drilling needs to be quick and fast.
Tips For Using Drill Bits
The importance of using the right equipment can’t be stressed enough. As mentioned previously, you will get better overall results by using metal drill bits. These are the only ones that will bore through steel and other metals effectively, and they are just as effective on wood, plastic, and fiberglass.
Safety equipment is just as important as the drill bits you will be using. Goggles, gloves, and even overalls and footwear will protect you from the metal and wood chips and sawdust that will come flying out every time you push the drill in.
Make sure your bit is sharp before starting. Dull drill bits aren’t only ineffective; they can also jam up and break and be a safety hazard.
Avoid overheating your drill and drill bits. When working with steel, use a lubricant such as CRC and keep your speed fairly low, this will reduce the likelihood of your bits breaking.
Best Drill Bits For Every Use
|Irwin Tools 3018002||Milwaukee Holesaw Kit 49-22-4185||Milwaukee Impact Driver Set||Irwin Timber Spade Drill Bits||Irwin Fast Timber Drill Bits||Milwaukee 48-89-9257|
|Tip style||Twist Drill Bits||Hole Saw||Screw Driver Bits||Spade Drill Bits||Twist Speed Drill||Step Drill|
|Material||Cobalt||Stainless Steel||Steel||Steel||Metal||Titanium Aluminum Nitride|
|Sizes||1/16”-1/2”||3/4" - 4-3/4"||3/16" - 2”||0.125” - 1.5”||0.0787402”||1/8" - 1/2"|
Sounds like this can be improved for the next reader.
Please share how this article can be improved?
Hi, my name is Aaron, and welcome to Banging-Toolbox.
As a builder and site supervisor, I started banging-toolbox with the goal to make the #1 building, DIY, and tool review resource on the internet.
Feel free to have a look around, and don’t hesitate to ask me any questions about DIY or building, you can find out more about me here.