Norseman Drill Bits 44170 Ultra Dex Type 240-UB 135 Degree Split Point Magnum Super Premium Jobber Drill Set (29 Piece)
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Questions & Answers
They don't have three flats, no.
My black case has a circular shape to it.
JNW
Norseman is the company that makes the product. Made in the United States of America Drill bit of good quality.
Diamonds are used in the cutter wheel, which sharpens the bit. You'll be fine if you stick to the Drill Doctor's instructions.
Selected User Reviews For Norseman Drill Bits 44170 Ultra Dex Type 240-UB 135 Degree Split Point Magnum Super Premium Jobber Drill Set (29 Piece)
So I like to think I'm a little bit of a tool expert. And these are top-of-the-line tools. br>If you're like most homeowners, justifying the cost of a good set of drill bits can be difficult. I am completely aware of your situation. But believe me when I say that once you've done so, you'll kick yourself for not doing so sooner. These bits will cut through wood, steel, and aluminum like a hot knife through soft butter. Cuts are crisp and clean, and the kerf is very small. They are heat resistant and do not distort or bend. To ensure accuracy, make sure to use a center punch. The carbon content is extremely high, which is exactly what you're looking for. br>Look, you can keep buying cheap Chinese crap over and over again, or you can spend the money once on the good stuff. Aren't you sick of those crappy Home Cheapo bits snapping at the most inconvenient times? Not with these guys. Just remember to back out your drill and let the meat out of the hole every now and then. br>Great range of sizes, great quality, and even the case is very nice. br>Quality hurts a little at first, but crap continues to hurt. br>Made in the USA br>I strongly recommendbr>Thank you for taking the time to read this.
This review is for the 44170 jobber length twist drill set, as there appears to be a mix of reviews. In a nutshell, these are great twist drills for general metalworking. br>br>To get more specific, Norseman claims these are NAS 907B. The twist drills must have a 135-degree split point, be made of M2 or M7 high-strength steel, and have a slightly thicker web, according to an aerospace industry standard. br>br>Because of the 135 degree split point, the point will center up slightly better than with the more common 118 degree point twist drills. It's a minor distinction, but if you're drilling a lot of holes, it can make a big difference in how quickly you can work. I still drill a pilot hole for the larger sizes to ensure that the point is clear. br>br>There are many different kinds of high-speed steel. You can learn more about M2 and M7 HSS by looking through Machinery's Handbook. M2 is the most common size for twist drills and other tooling. These drills, according to Norseman, have a high molybdenum content and comply with NAS 907B, implying that they are M7. M2 and M7 appear to be almost interchangeable, according to the Machinery's Handbook. M7 could possibly be hardened a little more. br>br>A jobber length is a length that can be used for a variety of purposes. Stub drills are shorter (and thus stiffer), allowing for more precise hole placement. The length of the aircraft has increased. Jobbers are ideal for a wide range of applications. The flutes of these drills appear to be coated in black oxide, but the rest of the drill appears to be uncoated. When drilling steels, black oxide works well to hold cutting fluid. When drilling aluminum, black oxide quickly wears away. You can see where the black oxide is starting to wear away in the first photo. On the left is a Norseman twist drill, while on the right is a Chicago Latrobe black oxide drill (another excellent drill). On aluminum, the Chicago Latrobe drill has been used a lot, and the black oxide has clearly worn off. Norseman leaves the majority of the drill uncoated, which means it will last longer when used on aluminum while still functioning properly on steel. br>br>Because of the 135-degree split point, jobber length, and finish, these twist drills are, in my opinion, the best general-purpose twist drills for metalworking.
Drill bits were once useful. Those were the days, I recall. But then came the influx of low-cost imports, which sent the world into a frenzy. For years, I've been using bits from big box stores and I despise them. They burn, shatter, don't cut, and I can't get a lot of holes out of them because of their poor geometry. Due to breakage, my bench was littered with incomplete sets. And I was sick of having one of them bind in a chunk of steel and kick me like a mule, destroying my wrists. I had a job two years ago that required me to drill 100 half-inch holes. quarter-inch sized holes a 12-inch plate I knew I'd be doomed with the imports, so I went out and bought three Norseman half-shells. bits of one inch What do you know, I only used one bit to complete the job, and that bit still had holes to drill. After that job, I bought this Norseman set, which was about five minutes later. It's something I use all the time. The bits bore very well. There isn't a shard of glass in sight. It's wonderful to open the case and see that all of the pieces are still intact and in their proper places. I wish I would have purchased this set fifty years ago! Yes, I'd buy it again if I had to, but I doubt I'd have to. Next to the drill press, I keep all of my old drill bits in a tray. They are available to anyone who shops at my store. This Norseman set, on the other hand, is kept in my toolbox under lock and key. Mine, mine, mine, mine, mine, mine, mine, mine, mine, mine, mine You won't be able to use them, either! br>br>I also purchased the Norseman four-piece set, which is larger than half-size. bits of one inch It's a nice set that's also reasonably priced. br>br>By the way, after watching numerous YouTube videos about which cutting oil is best for drilling steel, I came across one that suggested simply using plain water in a squirt bottle. No lubrication is required for drill bits. The bits must dig and cut into the ground. They do, however, require cooling, and nothing beats plain old water for cooling while boring steel. It really works. Who'd have guessed it?.
Bring them with you to work. When you're an adult and haven't broken any of your father's 1/8" (or smaller) drill bits in years; It's time to get your hands on a set made in the United States. br>br>You've used drills from your Milwaukee-based Husky friend Dewalt, but "made in USA" has turned you off. Tools made from "global materials" (also known as "overseas junk") that get you by because that's what they sell in town These aren't magical. br>br> If you don't know what you're doing, you'll break any drill from any manufacturer or drill ugly holes. br>br>What you get with these drills is a set of well-made, sharpened drills. These are made by people who are in the business of making high-quality tools, and you are paying for that. br>br>Made in the United States of America; I'm part of the last generation that cares. Purchase these to make the most of your ONE LIFE. When was the last time you drilled a hole and thought to yourself, "Wow, that was really nice. ".