The OX Bricklayers Line Pins are made using forged carbon steel for enhanced strength and durability, the blades are hardened, to prevent them from snapping or bending and assuring longevity. The OX Bricklayers Line Pins are chrome plated for extra wear resistance and premature rusting. Moreover, it gives the tool a fine finish, the heads are extra wide in diameter, which allows for an easier strike and helps prevent from slipping blows.