OCGIG 4pcs Titanium Coated Countersink Chamfer Tool Deburring Tool Set Metal Wood Drill Bits Zhongbo Business

I saw versions of this on youtube and decided to see for myself. They looked good coming out of the package - a thin film of packing grease on them.The smaller two had a bit of a burr, but that came off easily with a needle file. I tried all four in some aluminium and they cut extremely well, making a nice curl shaving. I tried the largest and smallest in some steel and they still did a great job. Very Happy with these.

Works great

This is a good tool set for the price. Works well enough on A36 mild steel. Kind of questionable if you really need a set of 5 sizes since the biggest and smallest in this set would cover every hole size in between. I'm sure it works better in a drill press than my hand drill, but I'm happy for the price.

Smooth and clean cut all the time

these dulled out after the first use on mild steel, I would not buy them again, they are fine for wood and soft metals, but not for mild steel or harder metals.

The best countersink you can use. wood or metal

Haven't used yet but looks good. Great price. Quick shipping.

I certainly didn't expect these to be amazing quality at the price point. They are fine and do the job , but I was surprised to see them just thrown in a bag together where they could bang against each other during shipping.I'm not cutting anything hardened, mostly wood and plastics with the occasional soft metal and they are doing the job.