| [CHAPTER I.] |
| The raw material. The gravers. The roughing out. The hardening |
| and tempering | 5 |
| [CHAPTER II.] |
| Kinds of pivots. Their shape. Capillarity. The requirements of |
| a good pivot | 13 |
| [CHAPTER III.] |
| The proper measurements and how obtained | 19 |
| [CHAPTER IV.] |
| The gauging of holes. The side shake. The position of the graver | 23 |
| [CHAPTER V.] |
| The grinding and polishing. The reversal of the work. The wax |
| chuck | 29 |
| [CHAPTER VI.] |
| Another wax chuck. The centering of the work | 35 |
| [CHAPTER VII.] |
| The finishing of the staff. Pivoting. Making pivot drills. Hardening |
| drills. The drilling and fitting of new pivots | 39 |