Hi I decided to try out a nail drill my friend had on my set of acrylics to see if it would be easier to do infills with rather than the file. Even though this was a cheap drill I was very careful not to touch my natural nail or skin. I was very impressed with how well it blended the acrylic in and want to invest in a proper drill for future use but I'm confused about one thing. When I had the old acrylic blended in I started my infill and everything was fine but it seems after I applied a gel overlay the area of where I applied the new acrylic has gone like a pale white colour. Its hard to explain how it looks. Its like the area of my nail that had grew up has been scratched really badly and left white marks. Which I don't understand as I never touched my own nail with the drill, I've used the same acrylic as the last time and I've done the prep procedure as I have been taught. Has anyone any idea why this has happened or what has gone wrong? I can't see my infill line just the white area of where the new bit of nail has grew up. Also I'm looking to buy a professional drill, where and which one is the best? Thanks