Infinity Tools 8mm 柄鳩尾榫銑刀

Dovetails came out razor-sharp right from the first test cut, and the 8mm shank fit my collet with zero wobble. Having all nine popular sizes in one set means I barely reached for my old single bits. The neck geometry really does clear waste cleanly, which makes a huge difference on hardwood.

The neck geometry on these bits really does make cleaner dovetails than my old straight-shank set. I’ve already cut four tight joints with the ½” bit and haven’t had any tear-out.

The set covers all nine of the common 8mm dovetail sizes I reach for, and the neck geometry makes it so the bit doesn't struggle in deeper cuts. Swapping them out in the collet is quick, and they've held a sharp edge through a few test joints.