Description of Drill America High Speed Polished Diameter Cutting Tools for Milling Accessories
High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Available in polished finish. Weldon shanks feature a round shank with one of more flats machined into the side for easy indexing and alignment. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging. 4 Flute double end.
I use these types of end mills a lot so I decided to try one of these and save a few bucks, no. I used this to mill a latch into .075w mild steel tubing. After 1/4 inch of travel (that's the diameter of the end mill) it got stuck and wouldn't continue to cut through the material while cutting. I flipped and used the other side and got 3/8" of travel. . We also use a good cutting fluid, that wasn't a problem. No thanks, I'll stick with the ones I know are good quality .