DOWN THE HOLE BITS SPECIFICATIONS - DTH BITS
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| CONCAVE FACE DESIGN |
CONVEX FACE DESIGN |
Concave Face design
For medium soft to medium hard rock conditions in consolidated ground conditions in medium abrasivity rock. Front face grooves provide excellent cuttings removal and the concave center provides optimal hole straightness. The concave design is the most common bit shape. |
Convex Face design
For medium sotf to medium hard rock in good ground conditions where maximum penetration rate is desired. The convex design will handle abrasive formations better than a concave or flat design. The convex design also enables the use of greater insert density for aggressive spherical, conical or ballistic tipped bits. |
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| FLAT FACE DESIGN |
OILFIELD FACE DESIGN |
Flat Face design
For hard rock formations where a very durable head is required. The flat face design is very stable and forgiving in fractured, voided or unconsolidated formations. The flat face design also handles abrasive formations well. Some models are available with face slots for improved hole cleaning. |
Oilfield Face
A combination of convex and concave designs, the oilfield head design provides the benefits of both in all applications. The second gage row shares the high loads on the gage inserts preserving life and reducing wear. The center cone provides stability and straightness. |
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