第61號鑽頭（6入包裝）

I’ve been using these No. 61 bits for small metal projects, and the precision-ground edge makes a noticeably clean entry without wandering. The set gives me just enough variety without extra sizes I’d never use.

I needed a tiny drill bit for a small plastic project, and these No. 61 bits cut through it like butter without any chipping. The .039 diameter is perfect for pilot holes in thin materials.

The precision-ground tip made a clean hole in a brass sheet on the first try, no wander at all. I’ve already used them on pine and a steel bracket, and they’re still sharp. For a 61 that tiny, the cutting edge holds up better than I expected.