I was a little skeptical about connecting them to the drill motor. This takes some getting used to, so I recommend doing some practice cuts. All in all I couldn't be happier. I find my Makita high speed machine works better and I have used both cordless and corded drills. I personally prefer cord. The cuts are very clean and precise. Once I got used to the mechanics, I was able to hold the material with one hand and the drill motor with the other hand.