PCB End Mill

These have performed great so far. I did break the first 3 before getting any machining completed. Actually ran in aluminum with good success. Need to keep in mind they are only .6mm (.023”) in diameter so high RPM.

I used these on dual layer abs for sign making. Work great and you don’t have to be careful with them because they are super cheap. Haven’t broken one yet

I like these end mill bits however I do not use them in a CNC machine. I use them for drilling very tiny holes in shells for crafting and jewelry making. They drill and cut very well and it does not crack the shells like a regular twist drill bit. It, also, cuts sideways which is very helpful with the small detail carvings. After the first order I ordered 3 more packs. The bits do not last long and will dull quickly which is the only downside with them. I'm very pleased and will order more in the future.

I use them all the time for projects in 6061 aluminum with no issues. If you read the other reviews i can tell you they have no clue on what they are doing. If you know feeds & speeds for your material these will last a good amount of time. If you plan on using these small end mills use flood coolant of mist with allot of chip clearing.

Engraving for 1/8" chuck. Wish I could find a face mill with that shank size

Used to cut fret slots on a hard maple guitar fretboard. Worked great! Didn't break the bit, surprisingly. 18000 rpm, 80 ipm (40ipm also worked), 1.5mm depth overall (0.1mm per pass). I might try 0.2mm per pass next time, but I can only recommend starting with 0.1mm per pass.

These are very small (0.3mm), so they do break easily. Half of them were broken when the package arrived. Better packaging to protect the tips would likely help.

Fantastic router bits for my inventables cnc. Outstanding detail bit!

I bought these for cutting fret slots with a shopbot cnc router worked great . Used one bit and didn't break it

Works great

Good endmills but keep showing up with 1 broken in package