لقمة ثقب رقم 63، مجموعة من 6

I needed a precise .037" bit for a circuit board repair, and this set of six HSS bits has been perfect. They cut through the fiberglass cleanly without chattering, and the high-speed steel holds an edge longer than my old carbon steel ones.

These little .037" bits are exactly what I needed for my model train projects, and the HSS steel holds its edge noticeably longer than the cheap ones I used before. Drilled clean holes in brass without any binding.

The #63 bits are tiny but mighty—they drilled clean holes in a brass plate and a hardwood scrap without any wobble or bending. The HSS edge held up through all six uses, and they still look fresh.