![]() ![]() 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. These bits are certified to ensure dimensional accuracy and the set of 3 includes 3mm, 4mm and 5mm bits.How To Buy Countersink Bits Photo by Cal.on licensed under CC BY-SA 4.0. The quick change ¼" hex shank is compatible with all ¼" hex shank quick change systems, it will ensure a secure hold that will not slip inside the chuck during use. Both the drill bits and countersinks are suited for use with softwoods, hardwoods and composite materials and they can be used in drill presses or electric hand drills. The tungsten carbide tipped countersink bits cleanly cut the recess and ensure that there is no scorching of the wood. The M2 high speed steel brad point bits offer a quick and clean cut alongside excellent chip removal, making them ideal for drilling the clearance holes. The collar has large openings on its side to help with the removal of chips, ensuring they do not clog. The depth stop has a free spinning, aluminium low-friction collar that is nylon faced to prevent burning or marking of the wood surface. ![]() The 5mm bit produces a major hole diameter of 12.7mm, for use with 12.7mm plugs. The 3mm & 4mm bits produce a major hole diameter of 9.5mm, for use with 9.5mm plugs. A deeper recess is used when you want to use plugs, or you can set the depth of the recess to leave your screw flush with the surface. You can adjust the brad point bit to change the depth of the clearance hole, and you can adjust the rotating depth stop to change the depth of the countersink hole. This set of 3 tungsten carbide tipped countersink drill bits with low friction depth stops and M2 high speed steel brad point pilot bits are truly the best we have ever offered or tested. ![]()
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