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Even if you have a drill bit sharpener, cheap bits will require more frequent sharpening and will become totally useless sooner or later. Cheap drill bits tend to break easily and lose their sharpness quickly, so you will have to buy new bits more frequently. The best drill bits can be quite expensive, but spending on the cheapest bits is rarely a good idea. These have angles that range from 60° to 120°. They may come fitted with outer spurs or “teeth” which help prevent chipping and splintering.Ĭountersink drill bits also have similar flat blades that extend from the center to the outer edge. 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.Ĭounter-bore drills come with tips that have flat blades that extend from the center to the outer edge. You may also see twist drill bits with split drill points, which ensure more stable operation and better penetration. Twist drill bits usually come with standard drill points, which are suitable for most general drilling tasks. Consider tip stylesĭrill bits also come in different tip styles. It is a good idea to get drill bits in a few different sizes so you can drill holes of varying diameters. Drill bit size is usually measured in fractional inches, wire sizes, letter sizes, and metric decimal millimeters. Have you got a range of widths and sizes in a kit? However, they may not provide the depth needed for certain jobs.
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Shorter drill bits tend to be stronger than long bits, and they are less likely to go off-center. The length of your drill bit will affect how efficient and how effective it is for specific tasks. For maximum longevity though, carbide-tipped drill bits are among the most durable you can buy. Titanium-coated drill bits are even more resistant to friction, and they stay sharp even with frequent use.
These are very resistant to corrosion and will bore through most any material efficiently. Cobalt also dissipates heat quickly, which reduces the risk of overheating when drilling through metal.Ĭonsider purchasing drill bits with a black oxide coating. 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. The materials from which the drill bits are made have a lot to do with their durability. Have you got bits that are durable enough? These drill bits are designed to absorb peak torques, which prevent them from wearing out too quickly. Milwaukee matrix carbide drill bits are equally durable, and they are especially resistant to impact. The cobalt alloy construction is resistant to heat and abrasion, and retain their sharpness for a long time. Most Irwin drill bits are ideally-suited for drilling into metal, and the best are even able to penetrate hardened steel fairly easily. Irwin and Milwaukee drill bits are among the best made and most reliable drill bits available. Some degree of flexibility is actually desirable, as it will prevent breakage when you have to drill at an angle.īefore you buy a drill bit set… Consider the brand? This will enable you to drill holes that are sized appropriately for specific purposes. You need to purchase drill bits in a variety of different sizes. Carbide-tip drill bits are not only strong but will stay sharp for longer. Drill bits that can bore through brick, stone, concrete, and metal can just as easily bore through wood and plastic. Your drill bits should be able to handle almost any material with ease. 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. 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. 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.ĭon’t forget to get a good, sturdy case as well. It is worth spending for the best quality drill bits you can buy.
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If you do a lot of drilling, you will probably be going through drill bits like crazy. There are so many different drill attachments you can use in your Makita, Dewalt, Milwaukee cordless hammer drill to drive screws and drill different sized holes in different building materials. Drill bits are useful for anyone who needs to do any kind of building, construction, repair, or DIY work.