These will be the last drill bits you will need to buy. They are super hard and will go through the toughest heat-treated metal. You will need to be carefull with them; even though they are hard, they will break if you were to drop them onto a concrete floor. But will a little care they should last a lifetime.
I purchased these as a gift for the home improvement junkie that I share a house with and guess who uses them constantly? ME! They are razor sharp and quite an upgrade from the cheap dull ones we had previously. Don't buy cheap tools! They are dangerous and frustrating. We also have the 14 volt Milwaukee cordless drill and I love that too. Very happy with the bits.
I've learned the hard way that HSS and Titanium Nitride bits don't hold their sharpness well when pushed hard. Cobalt bits like the Milwaukee set are the only way to go if sharpness over time is important to you. The Milwaukee set has the commonly used sizes (fractional sizes) and will work well for years, regardless of their use. I trusted Milwaukee because of their reputation for fine tools and am not disappionted.
I've had this set for years, with great results. Used for wood, thin metal, etc. They have their limits (e.g. concrete) so make sure you know what is behind any surface you're drilling. Recently, I did have a couple of bits break. As I understand it, this is a trade-off for any bit: sharp and hard = brittle, so you can't have your cake and eat it too. Unless you're going through soft material, take the eye protection warning seriously.
These are good bits and I applaud Milwaukee for making them in the USA. These may very well be the last Milwaukee bits made in the USA and I would encourage you to get them while you can. These bits probably ARE better than anything readily available considering the sad state of the times. However, I just compared these bits to 10 year old DeWalt bits in drilling through some thin galvanized steel and the results may surprise you. The Cobalt Milwaukee went through easy enough but the 10 year old US made DeWalt -nothing special I assume they are HSS - went through A LOT easier. I was surprised because I had heard so much about how great Cobalt bits were. Can you say a lot of crap? Now, you can't get these Dewalt bits anymore as the current ones are junk from China so that is why I say the Milwaukee's are probably as good as you are going to get but let's not get carried away.
I've used these bits to drill stainless steel beer kegs as well as steel I-beams and can find no fault with them. The 1/4" bit powered right through both materials (I used the 1/8" bit to drill pilot holes). I'm glad that I spent the extra money to get these cobalt bits.
They're good at that. They CAN be used on wood, but they were never intended to be do-everything bits that you would use to put holes in a wall to put shelves up or just use and abuse like they were standard HSS bits. These are not "the better bits." They are cobalt bits.
I'm a handyman and needed a good basic set for my job. These bits are terrific and go through anything. The case opens up and keeps them all nicely in order, just like in the picture. Highly recommended. Milwaukee still makes good stuff.
got these bits as part of a promotion that Amazon was running called 4 for 3 where I ordered 4 sets of bits and the cheapest set was free (this set of drill bits retails for $26.47 on Amazon w/free shipping)
Milwaukee makes great drills, so it stands to reason that their line of drill bits would be top notch products.
These bits are a good choice for drilling hardend materials such as thick gauge steel plate. They are Manufactured from heat-resistant cobalt to last longer, are Capable of drilling heat-treated materials, stainless steel, and titanium and feature a 135-degree split point designed for faster penetration.
This bit set Includes drill bits from 1/16 inch through 1/4 inch by 64ths and your purchase Includes an attractive metal carrying case.
I've learned the hard way that HSS and Titanium Nitride bits don't hold their sharpness well when pushed hard. Cobalt bits like the Milwaukee set are the only way to go if sharpness over time is important to you. The Milwaukee set has the commonly used sizes (fractional sizes) and will work well for years, regardless of their use. You can use these bits for drilling wood and plastic, as well as metal.
I trusted Milwaukee because of their reputation for fine tools and am not disappointed. You usually cannot find these in a home center-You might have to go online. I recomend them to anyone looking for a good set of bits for drilling in metal and other materials.