Review on π§ BQLZR 3.175mm Engraving Drill Bits for CNC PCB Machinery 0.6-1.5mm - Pack of 10 by Shawn Schmidt
What I wanted broke right away 3
Very easy to break. I've used them in my 3018 Pro CNC router and they only penetrated softwood 1mm and initially cut exactly how I wanted it to. However, when drilling deeper than 1mm, they broke easily, either due to my error or the machine. I broke 3 at once but I'm learning. I don't think they were bad for the price and probably good for those studying.
Pros
- Milling, inserting hole and edge, surface cleaning
Cons
- Lots
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