crappy flare tool

stainless doesnt rust

Stainless is non magnetic, if a magnet sticks, it's not stainless!

Neither of these statements is accurate.

Stainless most certainly can rust, and the chinesium ss is certainly more prone to that, but high chlorine content cleaners can make even passivated 303/304 stainless rust. 316 is much better, but can still rust.

400 series stainless rusts easily, and is magnetic, and 300 series stainless can be magnetized through mechanical working, such as machining.