Thickness measuring and injection device

摘要: A device for measuring the thickness of a surface material, such as spray-on foam insulation applied on backing, and injecting repair substance into material. An injection gun comprises needle that penetrates material being measured while slidable thickness-indicating rod is pushed inwardly by an amount equal to penetration needle. Two separate syringe cylinders are provided containing fluid components form when mixed withdrawn from these injected through passages cavity formed penetration.