Practice quickly opening your fingers at the top of the kettlebell swing to loosen your grip and prevent hand tears and blisters. This drill will also help you with proper timing on the kettlebell snatch - the point at which you release the bell in this drill is where you would open your hand and push into the overhead position in the snatch.

Do your hands hurt when swinging or snatching the kettlebell? Check out this article for more tips on improving grip.