sisona 1/8 3/16 1/4 5/16 3/8 Carbide End Mills Set - Solid Carbide (Tungsten Carbide + Cobalt) - 5Pcs 4 Fulte CNC Mill Bits for Steel - TISIN Coated

These bits are very sharp and durable.There is no visible wear and tear after long time of work.I am happy with it.

We’ll packaged and good quality

Used these end mills on a project I am working on, and they cut the aluminum and steel just like my other brand end mills do. so far, I love them and would not hesitate to buy more when different end mills are needed for future projects.

I would call these a good value for money. They showed great durability in a 1952 Bridgeport mill cutting 304 stainless steel.... and I cut a lot of it on a single cutter. Good job, I will buy more.

The machining of theses end mills is good. It is not on par with high end U.S. made mills but it is still very good. For the price this is a good deal. These are center cutting mills. I will be using them in my Bridgeport and Kondia Bridgeport clone. Remember, no one ever said I have too many end mills.

I finally got a chance to try out these endmills recently, and so far theyve been working great. Ive mostly used the 3/8, and its been perfect for my uses. I used it with some 1018 steel, 6061 aluminum, and O2 tool steel with my manual mill and it doesnt have any signs of wear yet. I hogged out some material on the piece of 1018, taking quite heavy cuts just to test the performance, and it worked well and cut like butter. I measured the grind of the flutes, and its only a few tenths small. I was able to hold a thou tolerance very easily. For the price of this set and the use Ive gotten from it so far even with only one of the endmills, Id say its 100% worth it. Ill update this review later on if I get a better scope of the durability or if any issues happen.

Excellent cutting endmills. I ran these dry at slightly higher speeds and feeds than my usual carbide tooling and they performed just fine with no signs of dulling or overheating. Cutting was almost silent and very fast. I examined the cutting edges after cutting in steel for a while and they showed no signs of premature wear. There were no signs of chip welding at all. Cuts were very smooth and practically burr free. A very good set of cutting tools. Real happy with these.

These have been working well for a home gamer like me. I dont use them a lot, but have not had any problems and they do a great job.

Super hard and strong. Drilled through angle iron without any problems. Nice durable set.

These Sisona bits do cut through thick solid steel pipe and thick ceramic AFTER using a different kind of drill bit to start the hole. You CANNOT use a center punch or anything on ceramic though. And a center punch isnt going to go far in the solid steel pipe I tried to drill through. HERE’S WHAT HAPPENED IN THE STEEL PIPE I got two sets of Stubby Drill Bits for Thick Steel at the same time. The largest NordWolf Bit wasn’t big enough, but it did easily stay centered on a Very Thick, Very Heavy Steel Pipe, and drilled through the first side like hardwood. Then I was going to try the same size bit in this set on the other side and it absolutely would NOT stay, no matter what I did. No matter how strongly I held it or careful I was, it kept walking and wandering off to the side. I tried a lot of times, and it would Not even START to drill a hole. I really wish I could have actually got a hole drilled with one of these bits, because the NordWolf only stayed sharp for the one side. It went completely dull on the very next side. Didn’t even drill two holes. HERES WHAT HAPPENED IN THE BOTTOM OF THE LARGE CERAMIC POTS Two large Ceramic Pots outside needed holes in the bottom before it rained. Again, the NordWolf drill bit was too dull after one use to even start the hole, so I used the next size down. And again, these bits absolutely wandered and walked away constantly, even from the starter holes I made!! I finally finished, but my cordless drill worked harder than ever before. I hope its OK.