Okay, by now you might be saying to yourself, “All I want is a basic set of bits for wood and metal. Got any of those?” Yes. For less than $20 you get a high-quality hex shank bit with a highly wear-resistant titanium nitride coating. And if you up your game some day to include working with an impact driver, these bits will work with it.

Use: Wood | Type: Forstener | Number of bits: 8 | Size range: ¼ to 1⅜ inchesWhen you need a perfectly round hole in wood with a smoothly machined sidewall, then you want a Forstener bit. These are best used in a drill press, but the smaller-diameter bits can be used in a hand drill.

Big HolesIf you need to make large-diameter holes—something between ¾ inch and 4 inches, let’s say. You don’t want a drill bit, you want a hole saw. Even though these aren’t drill bits, we’ve included a set of these at the bottom of this review. It’s reasonably priced and can serve both homeowners and professional users.

Konetool provides ready-to-sell carbide burr sets containing multiple burrs of various shapes. We offer standard carbide burr kits, and you can also build your own carbide burr set by choosing the burr selection, case selection, instruction, and laser marks. Not limited to carbide burr sets, for all our burr cutter products, we can produce according to the requirements of our clients. Some customers need burr bits to process hard-to-reach areas or burs with a certain coat. Whether you need extended long shank carbide burr or die grinder bits with unique cut geometry, we will satisfy you by offering our best products and service.

Konetool is a recognized name as a worldwide supplier of quality carbide burrs. We offer a complete range of tungsten carbide rotary burrs from shape A to N, available for both imperial and metric specifications. With our rich experience in manufacturing die grinder bits and global trade, we also produce custom burr bits to satisfy the special needs of our clients, such as coating, extended long shanks, and special cutting geometries.

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Use: Thin-gauge steel, aluminum | Type: Impact-rated step drill | Number of bits: 3 | Size range: ⅛ to ⅞ inchThey call these step drills because of their shape. Each step increases the hole diameter. You just stop drilling when you reach the appropriate hole diameter at the step that produces it. Although these bits are designed for sheet metal, they will drill a clean fast hole in heavier-gauge materials like electrical boxes and even mild steel channel, and shapes like L, U, and T.

Single-cut tungsten carbide burrs are often used for general-purpose works, such as milling, deburring, cleaning, and heavy stock removal. They are trusted to process stainless steel(INOX), cast iron, hardened steel, copper, etc.

Use: Concrete, brick, mortar, concrete block | Type: Hammer-rated carbide-tip twist drill | Number of bits: 7 | Size range: 3⁄16 to ½ inch

Aluminum-cut die grinder bits are perfect for cutting non-ferrous metal like aluminum, nickel, copper, and cobalt. It is also good for other soft materials like plastics. Aluminum cut burrs process aluminum with extraordinary efficiency and do not clog up due to the large flutes.

Suppose your drill doesn’t have a hammer function or you lack a dedicated masonry drill, what do you do then? Well, if your masonry hole drilling is confined to brick, concrete block, or mortar, you can use these inexpensive carbide-tip rotary drill bits for masonry. They won’t stand up to use in a hammer drill, but they work perfectly well, if slower, in a standard drill or cordless drill driver. Bonus: Their double-flute design allows better clearing of dust and chips compared to a single-twist type. This way you can use the drill’s high-speed setting to get through the job faster. Note that there are multiples of the smaller diameters, such as the 3⁄16-inch size, which are more frequently used with masonry screws.

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These hole saws are known as bimetal types because they're made from two types of steel. The body is made from spring steel and formed into a cup. Around the front edge of that cup is brazed a circular row of cutting teeth made from a narrow band of high-speed steel. The result is a light weight and durable accessory tough enough to make big holes in wood  or metal. Suppose you need to make a door knob hole in a wood door; turn to these. Use them again to make holes in steel, for a tool rack, say.

Due to the outstanding heat and wear resistance of our tungsten carbide burrs, they are good for cutting at higher speeds and feature a high stock removal rate on hard and tough materials. Considering the super long tool life, our burr bits will evidently save you money and time.

Konetool is an ISO-certified carbide burr manufacturer and supplier. We manufacture our rotary files with the highest degree of accuracy and strict quality control for perfect balance and concentricity. The advanced design allows for reduced noise and easy operation.

We provide carbide burrs of 1/4”(6 mm) and 1/8”(3 mm) shank diameter. Konetool supplies a complete range of 1/4” or 6 mm shank burr bits, which are offered in both imperial and metric sizes. They are used on air die grinders(pneumatic rotary tools), flexible shafts, spindle grinders, straight grinders, robots, and even CNC machines.

Carbide burrs, also known as rotary burrs or die grinder bits, are rotary tool-mounted stock removers that perform operations like shaping, cutting, deburring, grinding, leveling, chamfering, carving, milling, and contouring. Tungsten carbide burrs are widely used in different industries, such as automotive, aerospace, metal sculpting, engineering, jewellery making, and shipment building. Burr bits are ideal to work on ferrous and non-ferrous metals, like steel and aluminum; they can also process non-metal materials, such as hardwood, plastics, and stone. As the leading carbide burr manufacturer in Asia, Konetool supplies die grinder bits for metal with three cut styles, and different cut styles are best suited to certain materials.

The only sure way to make consistent and clean holes in glass and ceramic tile is with a carbide bit designed for those materials. These simple and inexpensive little bits work great. The carbide tip is diamond ground to a sharp point that enables a fast and sure start, putting the hole right where you need it, instead of the bit skating off and leaving a nasty mark. The three flats ground onto the bit’s shank prevent it from slipping.

The 1/8” or 3 mm shank burr cutters are widely used on metal, wood, glass, stone, and plastics. They fit most hobby rotary tools, such as Dremel, Wen, and Tacklife. These carbide cutters have proven excellent performance in wood carving, model engineering, jewelry making, engraving, sculpting, and casting.

Use: Concrete block, mortar, brick | Type: Rotary (non hammer) carbide-tip twist drill | Number of bits: 14 | Size range: ⅛ to ½ inch

Spade bits are made for quick-and-rough holes in construction lumber. They don’t leave a particularly clean exit hole, but in most cases that doesn’t matter. Of all the spade bits we’ve tried through the years, we keep coming back to Irwin Speedbor. They’re inexpensive, tough, and can be sharpened with a file. One set will last for years, maybe decades, depending on your use.

It’s almost a sure bet that when running pipe and wire in an old house, you’re bound to hit embedded nails when boring the holes. That’s where these bits come in. They’re thicker than the typical spade bit to resist bending, and they have a bevel on their cutting surfaces suitable for both wood and metal.

It’s often said that you don’t need a drill bit; what you need is a hole. How you make that hole is up to you, but it’s a given that you want to make it as efficiently as possible. The drill bit, therefore, is built to match the diameter and length of the hole you want to make—as well as the material in which it works. And chances are good that you need more than one bit, you probably need at least a small set to make holes of various diameters.

How To Select a SetThere’s no sense in getting bogged down in complexities of hole making–the fine points belong to industrial users. For the rest of us, all we really need to know are the basics. That’s why we separate out bits for making holes in wood, metal, masonry (concrete or stone), and tile/glass. Some of the drill bits do a pretty good job making holes in more than one material. Other than selecting a bit based on the material you’re drilling, keep in mind the quality of the hole you’re making. That sounds odd. A hole is a hole, right? Wrong, There’s a big difference between a perfectly round and smooth-walled hole for furniture making than a rough-and-ready hole made in framing lumber to fit a pipe or cable. So think about the material, the hole itself, and how you want to make it. Choose your set accordingly.

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These twist drill bits are built to withstand punishment. They’re machined out of high-speed steel and finished with a wear-resistant coating. Yet their tips can be resharpened. All that is good. What’s even better is that they’re made in America and yet are priced reasonably, especially when you account for the cost of the nice sheet steel bit index that they come in. We tried them, liked them, and thought enough of them to award them our coveted annual Tool Award.

If you’re getting interested in woodworking, this inexpensive brad point bit set is an easy choice. The sharp tip on these bits make it easy to start the bit exactly where you need it, and their geometry—somewhere between a twist drill and an auger bit—makes for good chip ejection.

If your drill driver has a hammer setting, chuck in one of these bits and make a clean and fast hole in concrete, brick, concrete block, or mortar. You don’t need an extensive set of masonry bits; a basic carbide-tip kit like this one is a great choice. Its German-made quality should provide years of use, and its slim, vinyl wallet enables it to slip into a crevice in your tool box. Carry this and you’re prepared for tough, masonry drilling jobs without having to make a quick run to a hardware store or home center.

Use: Wood and steel | Type: Extra-long twist drill | Number of bits: 5 | Size range: ¼ to ½ inchSuppose you need more reach when making a hole, such as when you’re working on an old house or restoring an old car. Or in a modern house, you need a super-long pilot hole for that massive screw you’ll use to hang a ceiling fan. Enter these 18-inch bits. Built from high-speed steel and with geometry to eject metal chips, they work on wood, too (though you will have to back them out repeatedly as you go deeper to eject the wood chips).

After sintering, forge, machining, and precision grounding of 100% raw virgin tungsten carbide, Konetool carbide rotary burr features extreme hardness and high-temperature tolerance. Thus our die grinder bits can work on much more demanding projects and run hotter and longer with consistent performance.

In some cases, our professional team might call you for efficient communication to provide our tailored solution. Are you willing to be contacted by phone call?

If you’re gearing up for your first big wiring or pipe job, or if you’re a seasoned pro looking for faster and cleaner hole-making ability, then self-feed bits are the way to go. The lead screw pulls the bit through the lumber while an interior plane shaves the wood as the bit turns. The result is a fast hole and a clean one. For the sake of longevity, the plane blade is sharpenable and the kit includes two removable, replaceable feed screws, because you’re bound to hit fasteners and chew through knots.

For the past 20 years, we have been offering premium-quality die grinder burrs for our worldwide clients at competitive prices. With years of experience in manufacturing rotary burrs and global trade, Konetool has become the leading tungsten carbide burr supplier in Asia. If you have any questions about our carbide burrs, please feel free to contact us.

Double cut, also referred to as cross cut or diamond cut, is the most common cut style and works for most applications. Double-cut burrs have more cutting edges, allowing for better operation control and smaller chips. Compared with single-cut burrs, they are used for medium-light stock removal and leave a fine and smooth finish. Double cut burr cutters work on ferrous and non-ferrous metals, including carbon steel, cast iron, stainless steel, aluminum, etc. They are also for non-metal materials like wood, ceramic, and plastics.