I've seen that before in our factory where we process hundreds of thousands of meters of alloy extrusion into components each month. Likely deburred on a flapwheel after cutting, before going for cleaning and anodising. Aside from being a little ugly, it shouldn't affect that particular tools function. In fairness to whoever did the work leading to that result, it's not an easy thing to get right all the time (dressing/deburring with an abrasive) and unless the manufacturing process includes a mill step to touch down the edges, there's not a lot can be done to avoid the 'hand finished' look. It's made worse by the anodising process which just highlights what may have looked very tidy before it was dipped. And when it's small batch production there have to be limits on just how much can be input as process steps and labour without skyrocketing costs.