As good as can be expected for a thin delicate blade. I'm cutting 8mm hardwoods including oak which blunts the blade p.d.q. Irritating that only a 1/2" section wears out so you dispense them with 90% untouched! I tend to use the 117's which are finer but cut better. There are, however, more breakages so eye protection is essential. In short, they're doing the job they're meant to so no complaints.