Part # Various
Drill Hole Casing
- Prevent collars collapsing
- Eliminates re-drills
- Made of soft plastic to prevent splitting
- Improves drilling/blasting
| PART# | DIAMETER | OD | OD | WALL | WALL |
| (OD) | MIN | MAX | MIN | MAX | |
| BBDC1.25 | 1 1/4″ | 1.225 | 1.275 | 0.055 | 0.065 |
| BBDC1.5 | 1 1/2″ | 1.475 | 1.525 | 0.055 | 0.065 |
| BBDC1.75 | 1 3/4″ | 1.725 | 1.775 | 0.055 | 0.065 |
| BBDC1.83 | 1.830″ | 1.800 | 1.850 | 0.055 | 0.065 |
| BBDC2 | 2″ | 1.975 | 2.025 | 0.060 | 0.070 |
| BBDC2.5 | 2 1/2″ | 2.475 | 2.525 | 0.070 | 0.080 |
| BBDC3 | 3″ | 2.975 | 3.025 | 0.090 | 0.100 |
| BBDC3.5 | 3.5″ | 3.475 | 3.525 | 0.090 | 0.100 |
| BBDC3.9 | 3.9″ | 3.875 | 3.925 | 0.100 | 0.120 |
| BBDC4 | 4.0″ | 3.975 | 4.025 | 0.100 | 0.120 |
| BBDC4.25 | 4.25″ | 4.225 | 4.250 | 0.100 | 0.120 |
| BBDC4.5 | 4.50″ | 4.475 | 4.525 | 0.100 | 0.120 |
| BBDC4.75 | 4.75″ | 4.725 | 4.775 | 0.110 | 0.130 |
| BBDC5 | 5.00″ | 4.975 | 5.025 | 0.120 | 0.140 |
| BBDC5.56 | 5.56″ | 5.525 | 5.575 | 0.130 | 0.150 |
| BBDC6 | 6.00″ | 5.975 | 6.025 | 0.130 | 0.150 |
| BBDC6.5 | 6.5″ | 6.475 | 6.525 | 0.150 | 0.170 |
| BBDC7.88 | 7.88″ | 7.850 | 7.900 | 0.150 | 0.170 |
| BBDC8.28 | 8.280″ | 8.250 | 8.300 | 0.150 | 0.170 |
| BBDC8.5 | 8.50″ | 8.475 | 8.525 | 0.150 | 0.170 |
