No.67 鑽頭 (6入裝)

Pulled these out for a metal shelf project and they cut through like butter. The high-speed steel really does stay sharp longer than the cheap sets I've used before.

I've been using these for a few days on some steel brackets, and they bite through cleanly without any dulling. The high-speed steel really holds an edge better than the cheap sets I've tried before.

Finally, a set of drill bits that actually stays sharp through multiple projects—these HSS ones cut through both wood and metal without slowing down. I’ve been using them for a few weeks, and the difference from cheap carbon bits is night and day.