This bit cannot be expected to persist. However, due to the cheap price, I assume that it can maybe be used once. Dulled 2 minutes after drilling into 1/16" steel, the bluntness caused the bit to get stuck in the steel and thus broke in my punch and got stuck in the hex chuck. Very disappointed with the product and the total waste of $12. I love other Neiko stuff lol it's generally good value for money. A Harbor Truck $5 step drill replaced this to do the job and successfully did the job and have used it ever since - and it's still cutting.