DEWALT Cobalt Alloy Steel Drill Bit Set with Pilot Point, 14-Piece (DWA1240)

Product Information

Yes - Suitable for portable or stationary drilling of high alloy content steels and metals with a tensile strength up to 1100N/mm² e. Having the right size and the right type of bit is key in ensuring the highest standard of work and ensuring that you can drill with confidence and accuracy. In addition, be aware that drilling into hard metal requires a special technique to ensure that the bit cuts into the metal smoothly without overheating.

The effect was a combination of quick bite into the material and smooth transition to the full width of the bit. Step bits, which are shaped more like a cone, can drill holes ranging in diameter from about ⅛ inch to ½ inch, with a maximum depth of ¼ inch. The cordless drill mostly worked well, but its variable-speed trigger made it more difficult to maintain a slow, precise speed for drilling steel. The M35 alloy bits are made from an alloy of steel and 5 percent cobalt for longer life under tough drilling conditions. We also really liked the 3-flat shank that made these bits fast and easy to assemble into the drill chuck.The SDS system delivers a higher standard and more efficient results than a standard hammer drill when working with harder materials like concrete. As the host of beloved and groundbreaking TV series including “This Old House” and “Bob Vila’s Home Again,” he popularized and became synonymous with “do-it-yourself” home improvement.

Because cobalt alloy bits are more expensive than conventional metal drill bits, they aren’t economical options for drilling materials like wood or masonry. The CHT384 Clarke Drill Bit Set are cobalt steel drills which offer higher heat and abrasion resistance compared to HSS drills, making them more suitable for use on hardened steel, super alloys, titanium.To drill countersink holes, twist bits are needed to drill the initial hole, then countersink drill bits are used to create the countersink holes. While the unique tips on the Milwaukee 15-piece cobalt drill bits proved especially effective at drilling in stainless steel, all of these drill bits would do well boring clean holes into a variety of metals. We tested with an eye out for the best drill bits that might work especially well for specific metals, such as which ones may be best for stainless steel or best for cast iron. This easy to use set with the innovative tapered web on each bit provides greater durability and reduces breakage, while the metal tip only starts drilling on contact. They are generally made from HSS and are suited to general household DIY tasks, as well as professional applications like maintenance and engineering.

Duologi is the trading name of Specialist Lending Ltd, which is authorised and regulated by the Financial Conduct Authority (register number 774712).The Irwin M35 drill bits performed well before and after sharpening—in fact, the bit had barely dulled after the first three holes. They drilled smooth, clean holes, and the 135-degree split point was easy to align with the bench grinder for sharpening. With its cone-like shape, a step bit enlarges the hole as it moves through the sheet metal, allowing users to regulate a hole’s diameter. Unlike the more exaggerated pilot-style stepped points found on the DeWalt and Milwaukee bits that we tested, this design only stepped up a total of about 0. Working with the Drill America M42 drill bit was almost an identical experience to working with the Irwin drill bit set, but this set is made of tougher metal and provides easier access to all of the bits at once.

Made with M35 cobalt alloy, this Milwaukee cobalt drill bit set is tough enough to penetrate stainless steel without breaking. Whether drilling wood, masonry, acrylic, metal or any number of other materials, having the drill bit for the job will give you the ability to drill with confidence and accuracy.These drill bits feature either the Pilot Point tip, the Split Point tip, or Chisel Point tip design that starts on contact and eliminates bit walking. TiN coated drill bits are best suited for drilling more stubborn materials like iron, steel, aluminium and more. To test this product, we used a cordless drill and a drill press to highlight the difference between precision drill press work and handheld drilling. Drilling through steel, cast iron, and other metals produces tiny shards that can end up in skin or eyes, so make sure to wear protective gloves and safety glasses when working with cobalt drill bits. This Cobalt Drill Set is manufactured from M35 steel for increased speed and effective cutting, even at high temperatures.