One size fits all. That definitely isn’t the case when it comes to drill bits. The drill bit you need will vary depending on the type and thickness of the material you intend on drilling, whether that be wood, metal, masonry (concrete or stone), tile or glass.
A combination drill bit set is the ideal way to make sure you’re always covered when it comes to drilling – containing a selection of the most commonly used drill bits, you’ll be safe in the knowledge that the drill bit you need is within your reach, even when it comes to those unexpected DIY emergencies! There are specialist sets available, which are favoured by the professionals, but for us, amateur DIY enthusiasts, a decent combination drill bit set, more often than not, will do the job just fine when it comes to carrying out basic home-improvements.
Using the right drill bit can mean the difference between doing the job right or doing the job twice. There are so many drill bits sets out there it can feel a little overwhelming when you’re trying to narrow down your search, so the best thing to do is to keep it simple: you want to choose a drill bit set which contains the type, material and size of drill bits that are best suited to the material(s) you intend on drilling. Ideally, you also want some accessories thrown in; a good-quality, durable case; and a decent manufacturer’s warranty. Just be sure to shop around so you’re sure you’re getting the best drill bit set for your money.
Only got 5 minutes
You own a drill. Chances are you’re going to need more than one drill bit. Agreed? The easiest, most cost-effective way of making sure you’ve got a drill bit suited to the task in hand is to invest in a decent drill bit set. For small sets with around 4-5 pieces, up to sets which contain 100+ drill bits, you can be sure you’ll find a set that gives you enough variety, without wasting your money on drill bits you’re never going to use.
- The 34-piece X-Line Classic drill and screwdriver bit set from Bosch is suitable for a wide variety of applications in wood, masonry and metal
- Suitable for all handheld and stationary drills with a practical X-Line case for the clear layout of the contents
- 5 x metal drill bits Ø 2-5 mm for metal, plexiglass and hard plastics, masonry drill bits Ø 5-8 mm (for masonry, sand lime bricks, natural stone and cast stone, 5 x wood drill bits Ø 4-8 mm for hard wood, soft wood and plastic
- 13 x screwdriver bits, length 25 mm (3 x cross-head, 3 x Pozidriv, 3 x slot head, 4 x Torx), 3 x nusetters, 1 x connector for nutsetters, 1 x universal holder, 1 x countersink
- Dimensions (lxwxh): 172 x 46 x 164 mm
Last update on 2022-06-21 / Images from Amazon Product Advertising API / As an Amazon Associate I earn from qualifying purchases
Choosing the best drill bit set
The world of drill bits is rather complex and can be a little overwhelming for us DIY novices, but leave the more technical jargon to the professionals. If you’re clear on the basics and take the time to shop around and compare a few different drill bit sets to ensure you’re getting the best deal for your money, then you’ve done what you need to do.
The three main points you need to be clear on before starting to shop are:
- The material(s) you’ll be drilling
- The type of hole(s) you’ll be drilling
- The size of the hole(s) you’ll be drilling
Once you’re clear on the above, you can make a decision on what material you want your drill bits to be made of. Many different materials are used for drill bits with the most common choice being HSS (High-Speed Steel), which can drill holes in a variety of materials and, depending on the material being drilled, can be combined with other materials if needed, such as carbide, titanium or cobalt, to strengthen the drill bit for drilling holes in really dense masonry and hard metals.
- X-Line drill and screwdriver bit set, suitable for a wide variety of applications in wood, masonry and metal
- 11 metal drill bits Ø 1.5-6.5 mm (for metal, plexiglass and hard plastics). 6 masonry drill bits Ø 4-10 mm (for masonry, limestone, natural and cast stone). 5 wood drill bits Ø 4-10 mm (for hard wood, soft wood and plastic). 3 spade bits, titanium Ø 16/22/32 mm
- 24 screwdriver bits L = 25 mm (PH 0/1/1/2/2/3, PZ 0/1/1/2/2/3, S 4/6/7, HEX 3/4/5/6, T 10/15/20/25/40), 10 screwdriver bits L = 50 mm (PH 1/2/3, PZ 1/2/3, S 4/6, T 20/25), 7 screwdriver bits Ø 4/5/6/7/8/9/10 mm, 1 connector for nutsetters
- Compatibility: For all handheld and stationary drills
- Practical Bosch X-Line case (236 x 259 x 64 mm) with clear layout of contents
Last update on 2022-06-21 / Images from Amazon Product Advertising API / As an Amazon Associate I earn from qualifying purchases
The most common drill bit materials:
| Material | Use |
| Soft low-carbon steel | Inexpensive, used for drilling wood, not particularly hard-wearing |
| High-carbon steel bits | More durable than low-carbon steel, can be used on wood or metal |
| High-speed steel (HSS) | Most-common material of drill bit, durable, more resistant to heat than high-carbon steel, can be used to drill the majority of materials including metal and wood, impressive cutting speed, easy to sharpen |
| Cobalt steel alloys | A variation on HSS that contains more cobalt used to drill stainless steel, aluminium and other hard materials, durable, pricey but widely regarded as being the best drill bit |
| Chrome vanadium steel | Resists corrosion the chrome/vanadium combination creates a harder metal than HSS. Stays sharper for longer than HSS |
| Tungsten carbide and other carbides | Exceptionally hard (tough ceramic) Can drill virtually all materials, expensive – normally found on top-quality masonry, tile, and glass drill bits, more brittle than steel drill bits and so is mainly used for drill-bit tips |
Once you’ve figured out which material of drill bit is best suited to you and your DIY plans, choosing the best drill bit set becomes much easier as you’ll be able to narrow down your search considerably. In terms of the size of your drill bit set (how many pieces), generally, the more ambitious your DIY projects are, the bigger the set you’ll need to purchase as you’re likely to need a variety of drill bits to hand, in a variety of sizes, capable of drilling into a variety of materials. Of course, there’s always the option to add to your drill bit set further down the line – adding more specialist drill bits – but a decent-sized combination drill bit set should be sufficient for the majority of DIY household tasks.
Desirable features
The higher your budget, the more swanky your drill bit set and case is likely to be. If you’re looking at around the £30+ mark, you’re likely to get a good number of drill bit pieces, made from good quality HSS, with a range of accessories and features, all designed and included with the aim of making your drill bit set easier to use:
- Magnetic bit holder
- Durable, waterproof, lightweight storage case
- Transparent case cover
- Roll mat keeps drill bits and accessories safely stored and easily accessible
- Screwdriver bits to fit most common screw types
- Ratchet and sockets
- Hex key set for loosening and tightening of nuts, bolts and screws
- Duplicates of the most commonly used drill bits
- 246pc Drill Bit Set Includes - 57pc HSS titanium twist drill bits, 30pcs HSS black oxide twist drill bits, 17pc wood drill bits, 4pcs flat wood drill bits,21pc Masonry drill bits
- 66pc 25mm Screwdriver bits - 10pcs Slotted, 12pcs Phillips, 12pcs Pozi, 10pcs Hex, 8pcs Torx
- 6pcs Inch Hex, 6pc Metric Hex, 12pcs Square
- 30pcs 50mm Screwdriver bits: - 4pcs Slotted, 7pcs Phillips,7pcs Pozi,4pcs Torx,4pcs Square, 4pcs Metric Hex, 1pc Cupped Nail Punch, 58mm Magnetic bit holder, Robust plastic storage case
- 2 YEAR GUARANTEE: For your peace of mind we offer a 24 month guarantee on our Terratek 246pc Combination Drill Bit Set
Last update on 2022-05-25 / Images from Amazon Product Advertising API / As an Amazon Associate I earn from qualifying purchases
An overview of drill bits
Drill bits are to drills what hammers are to nails: you can’t achieve much without them! Depending on the material you want to drill, there’ll be a drill bit specifically designed for that purpose. Metal, stone and even glass can all be drilled with the use of specially designed drill bits. There’s a big difference between the drill bill that results in a perfectly round and smooth hole drilled in ceramic for holding a soap tray, compared to a rough-and-ready hole drilled in the wooden frame of a garden shed. Ideally, you’ll want to choose a set that has a variety of drill bits, which are suitable for a range of different scenarios. Having the best drill bit is crucial to the successful outcome of any DIY project.
Choosing a set
When it comes to choosing a drill bit set you’re faced with two options – buying a drill bit set that contains the same type of drill bit in various sizes or choosing a combination drill bit set which is often the preferred option for DIY enthusiasts as they contain wood, steel, and masonry drill bits, all in the same case.
The different types of drill bits
There are so many drill bits out there to choose from but there’s no need to overcomplicate your search if all you’re looking for is a general-purpose drill bit set. Most sets, which class themselves as combination sets, will include the most common types:
- Step bit: ideal for drilling thin metals and wood; the stepped design allows holes of different diameters to be drilled using just the one drill bit.
- Wood drill bit with a ‘brad-point’ – the fine point enables you to drill more precisely; also commonly used for drilling plasterboard.
- Flat/spade drill bit: used for drilling large holes in wood.
- Tile & glass drill bit: used to drill bathroom and kitchen tiling with minimal risk of cracking due to the carbide tip.
- Masonry drill bit for drilling into brick, cement, concrete or plasterboard; you’d need to use this kind of drill bit with a wall plug.
Some types of drill bit will be more relevant to you than others, so decide which ones you’re most likely to use and these will be the priority when it comes to choosing your set.
Drill bit coatings
The important thing with any coated drill bit is the thickness of the coating. Buying from a reputable brand will normally ensure you get a drill bit set with a decent thickness, however, the downside of buying a cheap drill bit set is that often the coatings are thin, and so aren’t particularly hard-wearing, meaning the coating will soon wear away, exposing the core metal.
Three main types of drill bit coating:
| Black-oxide | Titanium-coated | Diamond-coated |
| Resists corrosion DurablePopular choice for both domestic and professional use | Resists corrosion DurablePopular choice for both domestic and professional use, gold in colour | Used for drilling glass and making large holes in masonry |
Drill bit sizes
The best drill bit sets will offer drill bits with a range of diameters:
| Drill bit type | Commonly used for | Common size range |
| Standard twist drill bit | Small holes in wood, plastic, some metals | 0.8 – 12mm |
| Masonry drill bit | Brick, stone, concrete, masonry | 4-16mm |
| Bullet pilot point drill bit | Drilling clean holes with minimal breakthrough damage | 1.5 – 13mm |
| Spade drill bit | Large holes in wood | ¼’’ to 1½’’ |
| Hole saw drill bit | Large holes in wood and light metal | ½‘’ to 6’’ |
| Adjustable wood drill bit | Drilling multi-diameter holes | ¾‘’ to 3’’ |
Compatibility
When choosing your drill bit set it’s important to check whether the set you’re going for is compatible with your type/brand of drill. Some drill bit sets will be universal fitment, meaning they’re compatible with the majority of drill chucks (the part of the drill that the drill bit fits into), whereas more specialist drill bits may only work with particular brands or types of drill, so it’s important to check this before clicking the all-important ‘Buy Now’ button.
Cost
With so many options of drill bit sets out there on the market, it can make the process of finding the ideal set a little overwhelming but, as drill bits as used for such demanding work, it’s worth bearing in mind that buying cheap may well result in you buying twice, particularly if you plan on drilling steel and masonry – cheap, poor-quality drill bits just simply won’t be up to the job. Stick with a reputable brand that you trust; check the reviews and buy the drill bit set that is best suited to you and your drilling needs. You can pick up a basic drill bit set for around £10 which can contain anything from around 5-40 drill bits. At the top-end, you can expect to pay anything up to around £100 for a larger, branded, good quality drill bit set, which is likely to come with some extra accessories.
- A truly cost effective range of accessory sets, the 'trade' Range has a comprehensive array of essential bits to suit most general applications.
- 100 piece trade set full of everything you may require for different jobs. 50x screwdriver bits and an array of brad points, masonry, hess, outdrives and hole saws
- Suitable for PVC, wood, metal, masonry
Last update on 2022-06-21 / Images from Amazon Product Advertising API / As an Amazon Associate I earn from qualifying purchases
Frequently asked questions
What is the best drill bit set for drilling metal?
Cobalt drill bits are the best choice for drilling holes in stainless steel and harder metals because they are stronger than HSS bits; this is usually reflected in the price. Copper in colour, cobalt drill bits also stay cooler than HSS bits, which makes them a better option for drilling hard metal.
What is the best type of case for my drill bit set?
The best drill bit sets are normally contained in a durable plastic case, which is both hardwearing and water-resistant. Inside, a magnetic bit holder is great for keeping drill bits organised and secure. A transparent front/lid means you have a clear view of your drill bits and a lightweight case means your drill bit set is easily portable.
What accessories will I get with a drill bit set?
The best drill bit sets will come with at least a few accessories to help you get going with your drill bit set. Obviously, the higher your budget, the more accessories you’re likely to get. The most common accessories included with a decent drill bit set are an arbor adaptor; bit driver; centre punch; and a countersink.
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