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.

So far holding up well.

Tested the 5/8” cutter in hot rolled steel, was able to do a full width cut at 2mm depth with a feed rate of 480mm/m on my CNC converted HF mini mill. Surface finish was excellent given the rigidity (or relative absence!) and I was very pleased with the speeds I was able to achieve - quite aggressive for me but felt I should put the cutter through much more than I ordinarily would for the purposes of this review. These cutters are definitely on my must buy list. Ran it dry and did four faces on two 1/2” x 3/4” x 4” pieces. Photos show finish from roughing operation and the blue chips it produced with no sign of cutter deterioration after removing a total of 1/4” over a length of 16”!

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.

Perfect bits.

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.

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.

I get it these are specialized tools. Not everyone has a milling machine. Well, I know someone that does and I have some parts that will need milling. Since I know I want him to do it as a friend, I figured this would be a nice trade. These are Tungsten Carbide and cobalt. We will be cutting a steel hitch that is 2.5” and needs to be milled to 2.0”. While we have not used them yet I am told that this is a good set and exactly what is needed to do the job. As far as price goes, I am no expert on these. I see prices for way less to way more. Once I see them cut the value will be in did they work as expected. When I have time to go over and he has time to mill, I will update my review. For now, not having much to go on except my friend the expert’s word I think this is a good set and recommend them.

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...

These are perfect for home use, hobbyist. My husband is in the manufacturing engineer world and deals with machine tools day in and day out. While they are not the caliber for high-end CNC machining, he was impressed with them for home use. If he has an update I will be sure to post it.