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Review on Efficiently Tackle Hard Metal Projects With Aiyun'S 6-Pack Metric Drill Tap Set For Steel And Aluminum by Major Genesis

Revainrating 5 out of 5

Worked Great! good for me

I used this tool to make 4 threaded holes in a 4040 aluminum extrusion for a 3D printer project.

img 1 attached to Efficiently Tackle Hard Metal Projects With Aiyun'S 6-Pack Metric Drill Tap Set For Steel And Aluminum review by Major Genesis

I had good pilot holes already, and the threads were very easy to make. Worked great!

Pros
  • works good comes in very handy for quick repairs
Cons
  • Not what I had hoped for. Small sizes break easily. I wanted U.S. sizes and got metric instead.