![]() Yes – but not as much as you might expect. Does the material I’m countersinking matter? If using just a countersink and not a countersink bit, you’ll need to do the second step in two parts, by drilling a pilot hole before creating your countersink. ![]() The fact that you have to make this change each time is why quick-change hex shanks are so popular with countersink bits. Then, simply drill down into your wood, until the countersink reaches the desired point, or you hit your depth stop.Īfter that, you can change out your bit and insert the screw. The first thing you will want to do get the bit length correct, by adjusting the position of the countersink. However, some people don’t like the shape of hole tapered bits make – it’s easier to ensure the right hole size with a regular non-tapered drill bit, especially if this is what you’re used to drilling pilot holes with. In general, tapered bits can help to drill faster, make it easier to start your hole, and help to ensure a stronger join when you insert your screw. If buying a combination countersink bit that also includes a drill bit for your pilot holes, you also need to consider the shape of the drill bit. ![]() ![]() If buying a combination countersink bit, look at the number and match it up to the screws you’ll be using. This way, you’ll be able to ensure a tight fit when you insert the screw. If buying an all-in-one, you want to have the diameter of the pilot hole you drill a little smaller than the screw. You can technically make smaller countersinks by just drilling a little more shallow, but it’s better to have a bit that’s the right size, especially if counterboring. Having the right angle will determine whether or not your screw head sits flush with your countersink. There are three aspects to consider when looking at countersink bit sizing. How do I know what size countersink bit to get? But if a bit costs next to nothing, chances are the manufacturer hasn’t spent much time thinking about how to make a given drill bit durable. This doesn’t mean that all cheap bits are bad. If a bit is extremely cheap, it will generally not be very durable.This is generally the best material for creating durable drill bits. For the drill bit part of the countersink bit (if it has one), you’ll want it to be coated in or made of carbide.This is what most of the premium brands use, especially the German ones like Bosch. Normally it’s used as a coating, because it gets quite expensive to make in bulk. Titanium is the best material for the countersink part of the bit.If you need a long-lasting countersink bit, be aware of the following: Some countersink bits are definitely more durable than others. How do I ensure I buy a durable countersink bit? This is why it’s so important to carefully consider your needs before buying. Specifically, it should have a flat (non-tapered) part at the top, to allow for a straight counterbore to be drilled after the countersink is complete.įor different people, different countersink bits will meet your needs better than others. If you want to be able to make counterbore, in order to use a plug to cover the screw for example, you’ll need a countersink that’s the right shape.Therefore, you might want a bit with a hex shank rather than a round shank to make it easier to change over. You might be using lots of different-size countersink bits on a given project.You’ll therefore need a countersink bit with a depth stop. If you need to drill a lot of holes, you might like to have a depth stop in place to ensure you’re hitting a consistent depth, every time. ![]() You might like to drill your pilot hole and countersink in one go – in this case, you’ll want an all-in-one countersink bit.What makes a good countersink bit?Ī good countersink bit is one that helps you get the job done more efficiently. However, the good ones will generally have some way of helping you control hole deep you’re drilling. Some of these countersink bits come with a depth stop, and some don’t. On the other hand, you can also buy countersink bits that come with a proper drill bit attachment, allowing you to drill your pilot hole and countersink all in one go. These are the large, cone-shaped bits you see that are very shallow. Plain old countersinks are designed to be used with holes you’ve already drilled. There are two main types of countersinks you can buy at the moment. What are the main types of countersink bit? In this section, we’ll discuss some key things you need to know when buying countersink bits. How To Buy Countersink Bits Photo by Cal.on licensed under CC BY-SA 4.0. ![]()
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