Types of Chisels - Cold, Masonry, and Brick Chisels - Bob Vila- chisel edge rock hammer home depot ,A cold chisel will cut any metal that is softer than the material from which the chisel itself is made. Made of hardened steel, cold chisels have a beveled cutting edge and an octagon-shaped hand­le.General : Chisels: Flat Tip vs Bull PointJun 20, 2013·The point directs the force of your blow to a smaller area than a flat tipped chisel, and so can do more damage. The disadvantage is that there is no way to control the direction the crack propagates with a gad point, whereas with the flat chisel, assuming a homogenous rock, the crack should propagate roughly along the length of the chisel tip.