Diamantslipstav

Took this out to the garden expecting to sharpen two pairs of pruners and ended up doing every pair of scissors in the house too. The half-round side handles curved blades way better than the flat stone I used for years, and the little groove puts a nice point back on my grafting knife.

Fits in my back pocket and I've already touched up three pairs of scissors and my loppers with it. The groove for points is the part I didn't expect to use, but it saved my awl and a couple of dull punches.

The half-round side is perfect for the curved blades on my loppers, and the flat face handles my pruners fine. Took a few swipes to get the hang of the angle, but it fits in my pocket and the diamond grit hasn't worn down yet.