Making Swarf

[rleete]

I managed to snap off a 1/2" carbide end mill last night. Started to chatter, and as I backed off, it let go. General consensus of the toolroom guys is that it was probably cracked from looking at the broken end. I dropped it the day before, so that may have been what caused that. I knew I was pushing it (DoC too large), but I was in a hurry to finish. I should know better.

Put a small gouge in the part, so I'll have to figure out a way to hide that.

Either way, that put an end to machining for the night.