metal detecter circuitis that circuit wich detects any type of metal if present.
Boss metal zone. Definitely.
My honest opinion, most distortion pedals sound like crap. I personally prefer good amp distortion. Plus pedals can be a pain to deal with when playing live. If you really want one, I suggest trying out all of them. Other than exploring other pedals by testing all of them out, I suggest you look up your favorite guitarist's choice of distortion pedals(if they use any).
I have the Boss Metal Zone and don't really care for it. I have not played the others but hear the Fullbore is nice.
I agree with Grammaton; most pedals are pretty poor pieces of equipment. Try to find a good amp with good distortion, it'll sound nicer in the long run. If you really want a pedal, though, there are some good ones, such as the Ibanez Tube King (not Tube Screamer), which has a pretty nice distortion. However, the best pedal I've ever heard is the Boss Heavy Metal HM-2. It's a discontinued product, but you can find it on okorder for a reasonable price, and it sounds absolutely incredible. I own one and I use it fairly often, mostly on my 212 amp. My half stack sounds better just with its own distortion, though. But, go to some stores, try out some equipment, see what you think sounds best. After all, the best judge of your amp tone is you. As a last note, the Boss Metal Zone pedal is absolute crap. Avoid it at all costs, it sounds like canned bees.
