Product Description
The 28 mm two-wing PDC bit equals 1.10 in and is positioned for small directional or oil-and-gas holes in soft and consolidated material. The filename also uses the word Anchor, but the explicit PDC and Diamond-Blade terms place this reviewed product in the PDC category. Its application limits can be checked in the directional drilling archive, with compatible ground in the soft formation archive.
Two wings carry full diamond-composite cutting elements around a compact face. The source does not state matrix versus steel body, connection, or circulation ports, so those specifications remain empty. Inspect the blade roots, cutter edges, center coverage, and gauge before assembly. M332 is used from the permitted PDC IADC list. The 28 mm diameter should not be confused with a thread size; connection fit must be verified on the physical tool. Because the face is small, a single chipped cutter can represent a large share of active contact, so photograph both wings before and after the run.
Operate within 2,000–10,000 lbf/in WOB and 60–300 RPM, using the lower response when the small face shows abrupt torque. The stated 250–650 gpm PDC flow range applies to an 8.5 in hole and is not assigned to this 1.10 in product. This bit is limited in gravel because loose clasts can break stable shearing contact and damage exposed cutters. General drilling background is available from PetroWiki. Use it in bonded soft material, and change the cutting system if coarse impact becomes the controlling mechanism.
