Intro to Millwright Practice Exam 2025 - Free Millwright Skills Practice Questions and Study Guide

The tool characterized by a heavy, cylindrical head with two usable striking faces is indeed the sledgehammer. This tool is specifically designed for delivering significant force and is commonly utilized in demolition work, driving stakes, or breaking up materials like concrete. The sledgehammer's weight and dual striking faces enable it to efficiently transfer energy to the target, making it an effective tool in various heavy-duty applications.

In contrast, a ball peen hammer features a rounded end (the peen) on one side, primarily used in metalworking for shaping and fastening. A mallet, typically made of softer materials such as rubber or wood, is designed to strike without damaging the surface being worked on, and it has a more lightweight construction. The claw hammer combines a flat striking face with a forked claw for removing nails, but it does not have the same heavy, cylindrical shape as a sledgehammer and is not primarily intended for heavy striking tasks. Thus, the sledgehammer's design and intended use distinguish it as the correct choice in this context.