I use metal tins to store impact-rated quarter-inch drive SAE and metric sockets (not pictured) as well as impact-rated quarter-inch hex bits (see photos below) in my Makita impact driver. These tins work incredibly well. In the first and second photos, I use bit holders from Tekton. They fit perfectly inside a small metal tin. The impact bits I'm storing in the small metal tin are two-inches in length. I can safely store two rows of impact bits in the small tin (see first photo). The red bit holder in the third photo is from PB Swiss Tools. It is random luck that the PB Swiss Tools bit holder fit inside the tin so well. Most of the impact bits in the third photo are six inches in length. I'm storing several three-inch impact bits in the tin as well for convenience. The six-inch long impact bits are especially useful when driving screws into long holes such as a pocket screw holes used in cabinetry.