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6 3/4″ MR532 Tricone Bit
IADC 532 · Φ171mm · 21kg · 3 1/2″ API
Cutting structure & formations
Gage rows: Conical. Inner rows: Conical. For soft formations with low compressive strength, typically shale, soft limestone, dolomite with interlayers, coal ore.
ORIGINAL · EN Conical on gage, conical on inner rows. Designed for soft formations with low compressive strengths such as shale, soft limestone, dolomite with interlayers and coal ore.
Shirttail protection
Hardmetal on lug; Wear resistant carbide on shirttail lip and lug.
ORIGINAL · EN Hardmetal on lug; Wear resistant carbide on shirttail lip and lug.
- Diameter 6 3/4″ / Φ171 mm, weight 21 kg
- Connection 3 1/2″ API, bearing Roller-Ball-Roller-Thrust Button/Open Bearing
- WOB 13,500–33,750 lbs, rotary speed 80–110 rpm
Technical parameters
| Model | MR532 |
|---|---|
| IADC code | 532 |
| Diameter | 6 3/4″ / Φ171mm |
| Thread | 3 1/2″ API |
| Weight | 21 kg |
| Bearing type | Roller-Ball-Roller-Thrust Button/Open Bearing |
| Circulation | Jet Air |
| Inner row teeth | Conical |
| Gage row teeth | Conical |
| Gage bevel protection | Round |
Operating suggestions
Actual parameters must be set per application
| Weight on bit | 13,500–33,750 lbs |
|---|---|
| Rotary speed | 80–110 rpm |
| Air back pressure | 0.2–0.4 MPa |
| Formation strength | 15,000–23,000 Psi |
