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

Ive used thede mostly for drilling into hardened steel receivers and barrels. It works great for cutting out oin slots on round objects. When my other more expensive drill bits have failed this set has gone through the same material like it was butter. They are a little short cut so for deep holes you will need to do alot of back and forth to prevent jams and damage. Over all im happy with them.

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.

At this point, Ive really only tested the 3/16 bit. Material removes cleanly, chips consistently. The first few cuts with this bit have been clean and crisp. The bit shows no wear, but for carbide, it really hasnt been tested hard yet. Reasonable price point, based on the anticipated bit life. As time progresses, Ill report on durability...

I have been needing to elongate the slot on this bracket so figured would give these a try. I chucked one of them up and went to it. I was not slow or gentle on it ether. I only made two cuts and it loved it. No complaints from it at all and with no lube either. I wanted to see just how well it would do when rushed and did just fine. Kindof surprised for a no namer. I know that will need to run for much longer to determine its true lifespan but for the price I cannot complain. I have a budget and cannot always get the best out there and these fit the bill. Hope this helps and thanks..

These carbide end mill bits are incredibly well made. They are very sharp and cut cleanly. This really is a fantastic value. I highly recommend them.

If you are looking for cutters that do not break the bank, these are an excellent option. The size range works well for most household tasks and the materials and finish are both great. You cannot go wrong with carbide so long as the coating and your material are compatible so if you are looking for a range of cutters, this is a great option to consider.

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.

I will come back and update once I have hada chance to use more of them. Maybe the material I was cutting was too hard. More use will tell.

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.

These end mills are a good value. They cut through steel without issue and left a good clean finished surface that needed little finishing to smooth out.