Use a Fine Detail Paint Brush
In order to keep the paint from dripping and pooling up in the corners of the details and beveled corners, I use a fine detail brush. I buy a package of 10 brushes from Michael’s Crafts (around 7 dollars with a coupon). They are the kind of brushes you would use to do a painting. This will help you get in the cracks of the details to even out the paint.
With the Second Coat Use a High Quality Paint Brush
Two or 2 1/2 inches is a great size to start with. Use good paint brush brands such as Purdy & Wooster. If you are using chalk paint, that is a good size that will fit in the can, otherwise, with a bigger brush, you’ll have to pour the paint into a new container, also, it’s harder for me to get detail painted evenly with a brush that is too big. But, it depends on what you like.