Ajax Rivet Buster chisels are available in both Alloy and Carbon High Quality American Made Steel. The Chisels manufactured from Alloy Steel are designed to be used on Steel type materials. The Chisels manufactured from Carbon Steel are designed to be used on Concrete type materials. This class of chisels are used in pneumatic rivet busters in construction and industrial applications. Construction industry uses Rivet Buster Chisels for chipping concrete and cutting rivets on structural steel. Foundries and Steel Mills use Rivet Buster Chisels for chipping slag from ladles and fracturing refractory liners in furnaces.