Essential Guide to the Steel Square

Chapter 1. Introduction 1 Square and True 2 The Modern Steel Square 3 Chapter 2. History of the Steel Square 4 Making Tools in Colonial America 5 Making Steel Tools 8 Making Metal Squares 10 Eagle Square Company 11 Sears, Eagle, and Stanley 14 Chapter 3. A Close Look at the Steel Square 15 Right Triangle 16 Area of the Right Triangle 16 Length of Diagonal 16 Circumference 16 Angles on the Calculat...