50pcs PCB Drill Bits Set Spiral Flute Carbide 0.3mm-1.2mm for Print Circuit Board Stone Dremel Jewelry CNC Engraving (5PCS Each)

Excellent for scale models!! These micro drill bits will work in any adjustable chuck hand drill. As some of the bits are oh so easy to break, at this price point it’s worth having extras on hand.

I used these on my micro drill press. They performed as they should. I added a little extra speed to the and they held up well. I am very pleased. I drill into brass, plated silver and sever other metals and these bits perform very good.

Bought these for plastic model building. They work great for drilling out spark plug wires in styrene. I wouldn't try drilling out metal, other than a foil. They are very fragile.

These bits fit perfectly into my Dremel 3100 and worked well right out of the package. They’re ideal for drilling very small diameter holes, just as described. I also appreciate that the set includes multiple pieces of each size. When you’re working with bits this small, it’s easy to chip or break one while you’re learning or if you’re not extremely careful. Having spares on hand is definitely a nice touch and makes the set more practical. Overall, they do exactly what I needed them to do.

Easy to use and worked awesome

VERY brittle. Any movement of the drilling device other than directly on to the work will snap the drill. Too bad because the base attachment makes handling these drill bits easy, and they will fit a Dremel tool or perhaps a hand drill nicely.

The assortment of different bit is important to us due to the nature of the repairs we make.

Good