Review on 🔧 Zhushan Cobalt Aluminum: Versatile 4 Inch Multiple Angle Tool by William Mathis

I've had the occasional use of one of these drills over the years as a contractor, but have only gotten bigger and bigger. I chose this among similar step drills because it is said to be able to cut stainless steel, which is quite difficult. I used it yesterday to drill an extra faucet hole in a new stainless steel sink. It cuts quickly like cutting plastic. It's a good item, not foreign junk just looking decent before use.