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SURFACE SET BIT NAMING CONVENTION
Finding the right bit is easy. The naming convention directly corresponds to the description of the bit in the list of part numbers.desired.
NQ 6/10 SEL R PC FD
123456
1. Size
Bits are available in all standard sizes B, N, H, and P.
2. Diamond Size
Boart Longyear surface-set diamond bits are available in stone-per-carat configurations ranging for 6/10 to 25/35 SPC.
3. Diamond Grade
Diamond Grade maximizes your drill bit performance, life, and speed.
4. Gauge
Boart Longyear bits are available in four standard gauge configurations.
5. Crown Profile
Boart Longyear surface-set diamond bits are available in step crown profiles.
6. Waterway Option
Where applicable, waterway options are identified here.
Standard gauge (S)
Equal to reaming shell gauge (R)
Oversized Outer Diameter (OS Inches)
Special (SPL): High-quality, unprocessed natural diamonds
Select (SEL): Best quality, processed natural diamonds
Double angle (DA)
Face discharge (FD)
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