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Review on ๐Ÿ”ฉ Mimhooy 1 2mm Cobalt Drill for Stainless Steel by Ken Reiff

Revainrating 3 out of 5

They did the job well enough even though I broke 2 of them.

For cleaning a clogged tip on a vacuum soldering machine. I ended up breaking the push pin at the tip trying to clean it. The first piece broke most likely due to my fault. The second broke when I tripped over a pin which unfortunately turned out to be a bit stronger. The bit failed to pierce, so I used the broken bit's shank and a hammer to clean out the broken needle and the rest of the blockage. At the end of the day. It did the job but I would only use it on soft metals. It definitely won't go through stainless or hardened steel.

Pros
  • COBALT DRILL BITS - Manufactured from M35 Cobalt Steel, up to 67 Rockwell Hardness, increases wear resistance and durability, provides fast and sharp cuts compared to other bits such as 4241 HSS Chisel, Titanium Drill Bits. Up to twelve times the average HSS drill bit.
Cons
  • Drill Pack