Review on 🔪 Optimized Chamfering Cutter Countersink for Flute Degree by Colin Watkins

Each item in this set is well made and has perfectly straight stems. I've used them on both steel and aluminum with good results. They leave a smooth surface that doesn't need any additional 'cleaning' and so far none of the parts have shown any signs of wear. The only reason I didn't rate durability and wear resistance is because I haven't had the set long enough. However, the complete freedom from wear that the bits have shown so far is a strong indication that longevity and durability should not be an issue. And to be honest, considering they work so well at this price point, I really don't care about durability. (As long as they're still available in case I need to replace them, of course!) PS No positive rating received for this review.