| FACTORS FOR DETERMINING DEPTH CORRECTION | |||||||||
| FOR GIVEN CHANGE IN OVER-PIN MEASUREMENT | |||||||||
| Based on 1.728 Pin System for 14-1/2º and 20º PA | |||||||||
| and on 1.92 Pin System for 30° PA | |||||||||
| 14-1/2º PA | 20º PA | 30º PA | |||||||
| Teeth | 0º | 20º | 30º | 40º | 0º | 20º | 30º | 40º | 0º |
| 5 | 1.02 | 0.97 | 0.91 | 0.83 | 0.82 | 0.79 | 0.75 | 0.69 | 0.72 |
| 6 | 0.92 | 0.88 | 0.83 | 0.76 | 0.75 | 0.72 | 0.69 | 0.64 | 0.66 |
| 7 | 0.92 | 0.87 | 0.82 | 0.75 | 0.75 | 0.72 | 0.68 | 0.64 | 0.66 |
| 8 | 0.86 | 0.83 | 0.77 | 0.71 | 0.71 | 0.68 | 0.65 | 0.61 | 0.64 |
| 9 | 0.85 | 0.82 | 0.77 | 0.71 | 0.70 | 0.68 | 0.65 | 0.61 | 0.64 |
| 10 | 0.82 | 0.78 | 0.74 | 0.68 | 0.68 | 0.66 | 0.63 | 0.60 | 0.62 |
| 11 | 0.81 | 0.77 | 0.73 | 0.68 | 0.68 | 0.65 | 0.63 | 0.60 | 0.62 |
| 12 | 0.78 | 0.75 | 0.71 | 0.66 | 0.66 | 0.64 | 0.61 | 0.58 | 0.60 |
| 13 | 0.78 | 0.74 | 0.70 | 0.66 | 0.65 | 0.63 | 0.61 | 0.58 | 0.60 |
| 14 | 0.76 | 0.73 | 0.69 | 0.64 | 0.64 | 0.62 | 0.60 | 0.57 | 0.59 |
| 15 | 0.75 | 0.72 | 0.68 | 0.64 | 0.64 | 0.62 | 0.60 | 0.57 | 0.59 |
| 16 | 0.73 | 0.71 | 0.67 | 0.63 | 0.63 | 0.61 | 0.59 | 0.57 | 0.58 |
| 17 | 0.73 | 0.70 | 0.67 | 0.63 | 0.62 | 0.61 | 0.59 | 0.57 | 0.58 |
| 18 | 0.72 | 0.69 | 0.66 | 0.62 | 0.61 | 0.60 | 0.58 | 0.56 | 0.58 |
| 19 | 0.71 | 0.68 | 0.65 | 0.62 | 0.61 | 0.60 | 0.58 | 0.56 | 0.58 |
| 20 | 0.70 | 0.68 | 0.65 | 0.61 | 0.61 | 0.59 | 0.57 | 0.55 | 0.57 |
| 25 | 0.67 | 0.65 | 0.62 | 0.59 | 0.59 | 0.58 | 0.56 | 0.55 | 0.56 |
| 30 | 0.65 | 0.63 | 0.61 | 0.58 | 0.58 | 0.57 | 0.55 | 0.54 | 0.55 |
| 35 | 0.63 | 0.62 | 0.59 | 0.57 | 0.57 | 0.56 | 0.55 | 0.53 | 0.54 |
| 40 | 0.62 | 0.60 | 0.58 | 0.56 | 0.56 | 0.55 | 0.54 | 0.53 | 0.54 |
| 45 | 0.61 | 0.59 | 0.58 | 0.56 | 0.55 | 0.55 | 0.54 | 0.53 | 0.54 |
| 50 | 0.60 | 0.59 | 0.57 | 0.55 | 0.55 | 0.54 | 0.53 | 0.52 | 0.53 |
| 60 | 0.59 | 0.57 | 0.56 | 0.54 | 0.54 | 0.54 | 0.53 | 0.52 | |
| 70 | 0.57 | 0.56 | 0.55 | 0.54 | 0.54 | 0.53 | 0.52 | 0.52 | |
| 80 | 0.57 | 0.56 | 0.55 | 0.53 | 0.53 | 0.53 | 0.52 | 0.52 | |
| 90 | 0.56 | 0.55 | 0.54 | 0.53 | 0.53 | 0.52 | 0.52 | 0.51 | |
| 100 | 0.56 | 0.55 | 0.54 | 0.53 | 0.53 | 0.52 | 0.52 | 0.51 | |
| 110 | 0.55 | 0.54 | 0.53 | 0.52 | 0.52 | 0.52 | 0.52 | 0.51 | |
| 120 | 0.55 | 0.54 | 0.53 | 0.52 | 0.52 | 0.52 | 0.51 | 0.51 | |
| 130 | 0.54 | 0.54 | 0.53 | 0.52 | 0.52 | 0.52 | 0.51 | 0.51 | |
| 140 | 0.54 | 0.53 | 0.53 | 0.52 | 0.52 | 0.52 | 0.51 | 0.51 | |
| 150 | 0.54 | 0.53 | 0.53 | 0.52 | 0.52 | 0.52 | 0.51 | 0.51 | |
| 160 | 0.54 | 0.53 | 0.52 | 0.52 | 0.52 | 0.51 | 0.51 | 0.51 | |
| 170 | 0.53 | 0.53 | 0.52 | 0.52 | 0.52 | 0.51 | 0.51 | 0.51 | |
| 180 | 0.53 | 0.53 | 0.52 | 0.52 | 0.51 | 0.51 | 0.51 | 0.51 | |
| 190 | 0.53 | 0.53 | 0.52 | 0.51 | 0.51 | 0.51 | 0.51 | 0.51 | |
| 200 | 0.53 | 0.52 | 0.52 | 0.51 | 0.51 | 0.51 | 0.51 | 0.51 | |
| 300 | 0.52 | 0.52 | 0.51 | 0.51 | 0.51 | 0.51 | 0.51 | 0.50 | |
| 400 | 0.52 | 0.51 | 0.51 | 0.51 | 0.51 | 0.51 | 0.50 | 0.50 | |
| 500 | 0.51 | 0.51 | 0.51 | 0.51 | 0.51 | 0.51 | 0.50 | 0.50 | |