I bought these bits for the price. I had one gift card left, just enough for this one. I have beats but they are scattered, boring and oversized so I figured why not. Let me tell you, they rule! I drilled a 12" x 12" 1/2" aluminum plate for the project with a 3/8" bit and it went like clockwork. The tips are aligned without offset to the center of the punch and also cut clean chips. I've run this bit at 1200rpm for holes and have had great success with a small amount of tapping oil. It would be great if the company would sponsor me!