Product Description
The 60–150 mm three-wing drag bit spans 2.36–5.91 in and is positioned for soft construction or mining holes drilled on equipment that accepts this fixed-wing head. Although the media filename mentions a DTH drilling rig, the required classifier assigns Three-Wing geometry to Drag Bits. The approved application context appears in the construction drilling archive, with compatible ground in the unconsolidated formation archive.
Three alloy wings meet at the center and carry the cutting load without a hammer-button face, rolling cones, or bearings. Inspect wing symmetry, edge condition, body cracks, and gauge across the full selected diameter. The source name supplies the 60–150 range but no thread or shank standard. A reference to DTH equipment does not prove that the head should be operated as a carbide DTH button bit; verify the supported adapter and actual cutting mechanism. Large changes across this family also affect torque demand, so the chosen diameter must be recorded rather than treating every model as one interchangeable head.
Because the project maps this structure as a drag bit, use low WOB and 100–250 RPM. No numerical drag flow or air-pressure value is assigned. The head is limited to soft or weak medium material and is not recommended for 15,000–30,000 psi granite, basalt, or quartzite. The ScienceDirect rock-mechanics topic can support formation terminology. If the job requires percussion in competent rock, select a true button/DTH design with its 1,000–3,000 lbf/in and 25–60 RPM operating family. Inspect early.
