TranRay 1/8" Shank Dia. Carbide Milling Bits, Double Flutes Spiral Carbide Flat Nose End Mill CNC Router Bit 1mm Cutting Dia.

I am using these to cut detailed logos and text into acrylic. I have been using the same tool out of the pack for a week now, and it's still sharp and going strong. I expected to get maybe 3-5 units per tool since I am still prototyping, but considering I am still using the same one, I can effectively extend that to 20 units or more. I am cutting all the way up to 35 ipm at ~6200rpm with a cut depth of .004"-.006" per z level. I am getting entire batches cut in a couple of minutes. I could go faster, but the machine I am using doesn't like to ramp down the feedrate around tight radiuses as much as it should.I will try my hand at doing a couple of 6061 aluminum and 360 brass parts with serial numbers and see how that goes since they seem to hold up much better than expected. Really glad I didn't pay more.

I make printed circuit boards using a Sherline mill fitted with a 11K RPM spindle motor. Target depth of cut is 0.004 and feed rate is 4 IPM. These bits are as good as any other bits I have used, which cost 4X the price of these bits. I broke 1 bit while making an 8" x 4" PCB that has approximately 200 traces. The bit broke about 75% through the process. Prior to that point, the trace edges were clean and crisp.

These bits are good, will dull and fail eventually. Don't go more than 0.007 inches cut depth per cut at 10 inches per minute or less on any wood

I used this with 360 brass. Broke the first one I used because my feed speeds where too high for the size of cut. The second one did very well. They seems sturdy and well made. The case of ten is nice because you can always have extras.

I needed a small bit to mill a leather stamp. These bits worked perfectly. I milled the stamp out of aluminum with my table-top CNC mill. I removed 0.001" at a time because I didn't want to over stress and break the bit. It took longer, but I completed the job without breaking a bit.

I made a few circuit boards with each mill. They did about 100 inches of travel before I swapped cutters. They might go more but it was starting to get dull.

They came quickly and seem to work fine. I am happy with them.

They do exactly what they say they're going to do. How much more can you ask for