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Reviewed in the United States on September 3, 2023
Buy them.. throw them out after each use, buy some more.. I machined hardened alloys with one of these for over a 2hr run time with no issue.
Francisco
Reviewed in the United States on December 22, 2023
Estoy muy satisfecho con , la puntualidad y la calidad del producto
Jolene C.
Reviewed in the United States on December 20, 2022
I bought these for my CNC router and even at very low feed rate they snap.
this is my name
Reviewed in the United States on December 16, 2022
I use these in a Dremel tool for various work projects. They’re more durable than others I’ve used, with less breakage for woodworking applications.
Charles Darwin
Reviewed in the United States on April 13, 2022
These are nice, sharp end mills which perform very good drills at 1mm/sec and 22K RPM. They also mill quite well as long as you reduce your feedrate way down. The detail available at this small of a diameter is incredible. That being written, the main issue with these bits is that the length of the cutting edge is far too long for what 99% of us will use these for; shallow engraving in PCBs or in ABS color core engraving service for things like name tags and signage. The only thing I could ever see needing such a long (5.5mm) cutting edge for would be for detail engraving in wood. The problem is, the bits are way too fragile to cut into wood, unless you feed in the sub-mm/sec range. As it is, I was relegated to .5mm depth-of-cut and 5mm/sec feed rate, 22K RPM when engraving HDPE - and it only took me 4 broken bits to zero in on this, and I still randomly broke one bit at these feeds and speeds 4 hours into the job : . If I were milling copper from a PCB, I can imagine .1mm DOC and 1mm/sec feedrate would probably be optimistic. Now, if the cutting length were greatly reduced to, say, 2mm (or even 1mm for PCB work), one could push these bits harder and have respectable performance. Are you listening, uxcell? Give us a .7mm diameter with a 2mm cutting edge, please!
Ken Hall
Reviewed in the United States on September 18, 2020
I make awards and recognition plaques for our heroes, military, first responders, health care, and home and office. These end mill bits are tremendous and last a long time. I cut .075 deep with no problem and sometimes even .10 deep. I may need up to 6 passes to create a letter, but the first one is the critical one as it is fully embedded in the material, normally I make two passes, but for a .1" cut I will make 3.
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