Header banner
Revain logoHome Page
Zachary Spaulding photo
1 Level
776 Review
53 Karma

Review on πŸ”§ Micro Straight Electrical Drill by Mtsooning by Zachary Spaulding

Revainrating 3 out of 5

It looks like it's made of jello instead of high-speed steel

I had a hard time drilling a 1/16" brass plate. I had to go through 3 drill bits to make it 1/16". I may have used the wrong lubricant or feed rate. But others Drill bits I've used with a similar technique seem to work well.Then I started using a dull drill bit as an engraving tool.I sharpened the shank at a right angle,put it in a vise and tried again with a soft brass sheet engrave. Don't go. Looking at the cutting edge under a microscope, the cutting edge is bent back. I hope I just have a bad batch, but I wouldn't recommend it for anything other than drilling a hole with all ten bits.

Pros
  • Excellent performance and stability: The drill bit is made of high-speed steel that reduces friction and overheating for the best combination of strength, heat resistance and wear resistance.
Cons
  • Big and bulky