![]() What ever the reason it’s important to understand the extent of the material you’re going to need to remove. Hard tool steels tend to be really brittle so this. Or it could be that you’ve managed to snap the drill bit while drilling or even just dropped it. Another sign could be that the drill bit is getting excessively hot and even burning the material. Whether using a hand drill or a drill press you’ve probably noticed a reduction in the speed at which your drill cuts through material when you apply a pretty decent pressure. The most likely reason is that you have a dull drill bit. There are a few reasons why you’re looking to sharpen your drill bit. Examine the whole cutting edge, right to the outer edge of the bit. You’ll want to take a close look at the drill bit you’re sharpening. You’ll be grinding down the exterior of the bit and re-tipping it in most cases.įorstner and hole saws are different than twist bits, but all of them can be sharpened at home. Sharpening drill bits is a straightforward affair. No matter what you’re using, the idea is the same: you’re going to try restoring a sharp cutting edge to the tip of the drill bit.įor hard bits you’ll need diamond flat files or wheels, keep that in mind if you’re sharpening tungsten or cobalt bits. It’s not a bad idea to look into this option if you need to do a whole set. With a Drill Bit Sharpener- If you’re regularly sharpening bits, there are sharpeners that do it automatically.It also requires some proficiency with the tool that not everyone has. With Power Tools- A bench grinder is the most common tool used for putting the sharp cutting edge back on bits, but it can’t be used in all cases.By Hand- Using a file and, usually, a jig you can put most simple bits made of HSS back in working order.However there are three approaches you can take: ![]() That exact method you’ll need to follow will vary for different types of drill bit. You can apply a polish to get most of the same friction-reduction and the coating is minimally effective at anything but delaying rust in the first place. Oxide coatings, the black stuff, are the only coating I’d recommend re-sharpening. Enjoy the lifespan of your titanium drill bits and just buy another set when they’re too dull to be of use. ![]() ![]() In all cases, you’re going to lose the coating by sharpening the bit. CoatingĬoatings are a complicated matter, at least when it comes time to sharpen. A standard hardened steel file is too soft to re-edge the blades on the bit, so diamond tools or a professional are required. Their extra hardness makes them impractical to sharpen at home. In some cases, you may want to purchase another set entirely.Ĭobalt and tungsten alloys are commonly used for hardened steel or masonry. It’s quite hard but doesn’t require exotic materials to work with.Ĭheaper steel is even easier, but the time investment in sharpening them is intensive. HSS is a great material, designed for drill bits and other tools which are subject to high RPM loads. Most drill bits are made of some form of high-speed steel. The following can all keep you from sharpening the drill bit in question. More often, it has to do with the mechanical properties of the bit’s material. Diamond bits, for instance, rely on an abrasive to cut and the diamonds will “burn” as time goes on. ![]() Sometimes this is due to the type of bit, primarily when we’re talking about specialty bits. There are dozens of different variations of drill bits, and not all of them are serviceable at home. While some other types can be re-used, it’s often not economical. Provided you can work the base material of the bit with your tools, you should be able to sharpen all of these at home.
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