The Drll Store FX series bits are latest advancement in cutting structure
design.These bits feature the most aggressive cutting structure with
largerdiameter inserts and insert projections. The longer / wider cutter
profileallows for more rows of inserts, hence more Tungsten Carbide
Inserts.Bits does not have bevel row insert protection, in stead the
cones have acontinuous hard metal band to reduce the erosion of
land surfaces.
Avalibale IADC
| Series |
Application |
Operating Parameters |
| Rotating Speed(RPM) |
Weight on Bit-WOB(lb/in) |
| 30 |
Very Soft |
70-140 |
1000-4000 |
| 40 |
Soft |
70-140 |
1000-4000 |
| 50 |
Soft to Medium |
50-140 |
2000-5000 |
| 60 |
Medium to Hard |
50-110 |
3000-6000 |
| 70 |
Hard |
50-90 |
3500-7500 |
| 80 |
Extremely Hard |
40-80 |
5000-8000 |
Available Sizes
| Bit Size |
| in |
mm |
Pin Size |
| 6 3/4 |
171 |
3 1/2 |
| 7 7/8 |
200 |
4 1/2 |
| 8 1/2 |
216 |
| 9 |
229 |
| 9 7/8 |
251 |
6 5/8 |
| 10 5/8 |
270 |
| 11 |
279 |
| 12 1/4 |
311 |
| 13 3/4 |
350 |
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