![](https://blog.des.no/wp-content/uploads/2015/05/IMG_9569-1024x683.jpg)
Carefully brushing the sockets with a Dremel #537 brass wire brush at 15,000 rpm. Harder than it looks, because the brush is quite narrow (I tried to bend the wires into more of a cone shape, but didn’t have much luck) and I couldn’t angle it much without hitting the rim of the socket with the brush spindle.