Are you tired of constantly replacing your drill bits? Consisting of metal rods with helical grooves, drill bits are designed to cut holes in solid objects. Friction and stress, however, can cause them to degrade. The tip may gradually wear down, or it may break off altogether. Fortunately, there are several things you can do to make your drill bits last longer.
Choose a Cobalt Bit
The material from which a drill bit is made will affect its strength and overall longevity. Cobalt drill bits, for instance, are known for being the strongest on the market. They feature a cobalt content of about 5% to 8%, which makes them stronger than both stainless steel and titanium bits. They can cut through otherwise hard materials, including metal, and they are more resistant to wear and tear than traditional bits.
Sharpen Regularly
When was the last time you sharpened your drill bits? Sharp drill bits can cut more easily than their dull counterparts, thereby reducing friction. You can sharpen your drill bits using either a sharpening stone or a specialized bit sharpener. With sharp drill bits, you won’t have to apply as much pressure to penetrate and cut into materials, and you can expect your bits to last longer.
Use the Right Speed Setting
Contrary to popular belief, faster isn’t always better when drilling. Faster drilling speeds increase friction and heat, which can degrade drill bits. Adjusting the speed setting to match the material in which you are drilling will extend the life of your bits. If you’re drilling into metal, start with a slow speed setting and gradually raise it as needed.
Use a Cutting Fluid
Another tip to make your drill bits last longer is to use a cutting fluid. Cutting fluids are lubricants that are designed to reduce friction with cutting tools, such as drill bits. When applied to a drill bit, the cutting fluid will coat the helical grooves to reduce friction and, thus, heat. Just a few drops of cutting fluid can extend the life of your drill bits.
Apply Light and Even Pressure
Don’t make the mistake of pressing the drill too hard. Instead, apply light and even pressure while keeping the drill perpendicular to the workpiece. Let the drill bit do the work for you by digging into the object and scooping out material. If you press the drill too hard or unevenly, you may end up damaging the bit.
