Zircon metalliscanner mt6 zircon 62151 locate embedded metal before your drill bit or saw blade does metalliscanner mt 6 is the tool you need if you are sawing concrete slabs or walls that contain rebar conduit or plumbing this powerful dedicated metal scanning tool can locate metal up to 152 mm deep in solid concrete mt 6 locates both ferrous and non ferrous metal up to 152 mm deep in concrete and other non metallic surfaces mt 6 differentiates between ferrous and non ferrous metal tar