

Blade Size |
Blade Thickness (mm) |
Blade Depth (mm) |
Teeth per Inch |
Recommended for BS Gauge |
Drill Size for Piercing |
8/0 | 0.160 | 0.320 | 89 | up to 26 | 80 |
7/0 | 0.170 | 0.330 | 84.0 | 24 - 26 | 80 |
6/0 | 0.178 | 0.356 | 76.0 | 24 | 79 |
5/0 | 0.203 | 0.399 | 71.0 | 22 - 24 | 78 |
4/0 | 0.218 | 0.445 | 66.0 | 22 | 77 |
3/0 | 0.241 | 0.483 | 61.0 | 22 | 76 |
2/0 | 0.262 | 0.518 | 56.0 | 20 - 22 | 75 |
1/0 | 0.279 | 0.559 | 53.5 | 18 - 22 | 73 |
1 | 0.305 | 0.610 | 51.0 | 18 - 20 | 71 |
2 | 0.340 | 0.701 | 43.0 | 16 - 18 | 70 |
3 | 0.356 | 0.737 | 40.5 | 16 - 18 | 68 |
4 | 0.381 | 0.780 | 38.0 | 16 - 18 | 67 |
5 | 0.401 | 0.841 | 35.5 | 16 | 65 |
6 | 0.439 | 0.940 | 33.0 | 14 | 58 |
7 | 0.480 | 1.016 | 30.5 | 12 | 57 |
8 | 0.500 | 1.118 | 28.0 | 12 | 55 |