A Machinist's Hammer: Part 1 Sketch CNCCookbook
Building the THammer requires making the following parts: Head (Dark Blue): To be made of alloy steel such as 4130. We'll need to make it a true cylinder with a hole for studs at either end and a hole for the neck in the middle. All holes will need to be threaded. Neck (Red): To be made of aluminum. We want a heavy head and a light ...