I use this almost exclusively to cut slots in small shelves. Like for a fastener or a lectern book sliding stopper or perhaps something adjustable. I could use the 1/4" straight bit that came in a set of various bits costing about what this one bit costs. So why would I buy this? Well, it cuts far more accurately. You can see by eye even that the slot is kind of perfect. The 1/2" shank transfers more power for any brand, but it's still a feature. The cutter goes straight and it doesn't care if it suddenly hits where a branch was in hardwood or an odd spot in something, that just disappears. That's where the "free" or "multi-pack" one fails. Something a little off and it wobbles and maybe you can see it, or the board moves a little, or the slot height is uneven, or even some little bits fly out, all of which leave the slot looking crummy. So being frugal I might very well use cheap bits sometimes where the holes will be invisible or I'm just doing some random chopping. But for finishing stuff that the end user will see, you need to use a specialty "premium" bit. For me that's usually This bits because I get consistently good results with them. And again, not saying your whole set needs to be these--they're not cheap. But even for a hobbyist who can't pass on the cost, the ones you really like and use frequently should be this.
