The step drill are not perfect, but madness!

Previously I used cheap step drills. Until then have given up the ghost for rare use. Because otherwise I have made good experiences with Ruko metal drills, I decided ultimately here for Ruko. Ordered directly from Amazon.

The step drills have not been disappointed me, but excited. How to cut fast, reliable and easy to drill into the material, is the hammer. And even so far only with the slightest signs of wear. So you have to really neat to watch out that the hole does not become too large. Although I have not used so often, I'm convinced acquired the right product.

Four stars because the inscription is difficult to read and (even if I knew it before buying) can only cut up to 30mm in diameter the set. Fittings (eg kitchen) need because often holes with 32mm.

Best Buy!