مثقاب رقم 78 (عبوة من 6)

The precision-ground tips on these No. 78 bits bite into brass without wandering, which was a pleasant surprise for such a small diameter (.016"). I've already used three of the six drilling pilot holes in hardwood, and they're holding up well with no dulling yet.

These tiny No. 78 bits are perfect for my precision work, and the 6-pack gives me plenty of spares. They cut through a circuit board with zero wobble, staying sharp after a few uses.

Needed a precise .016 bit for a tiny brass hinge pilot hole, and these cut through clean without wandering. The ground tip is noticeably sharper than my old generic set.