Mayhew Junior 2-7/8 Inch Drill Rod with 0.308-0.362 Wall Thickness for Mining and Construction
Professional 2-7/8 inch tapered drill rods designed for mining, quarrying, and construction applications. Features friction-welded joints, multiple length options from 5 to 20 inches, and compatibility with 2-3/8 MAYHEW JR. threading. Built for extended service life and efficient energy transfer in demanding environments.
Place of Origin
Germany
Use
Ore Mining,Well Drilling
Size
2 - 7/8"
Packaging Details
Wooden packaging
Material
Carbon Steel
Model Number
2-3/8" 2-7/8" 2-7/8" 2-7/8" 2-7/8" 3-1/2" 3-1/2" 3-1/2" 4-1/2" 4-1/2" 4-1/2" 4-1/2" 4-1/2" 4-1/2" 4-1/2"
Product Description
2-7/8" Drill Rod Overview
Mayhew Junior tapered drill rods are engineered for demanding drilling applications in mining, quarrying, and construction environments. These friction-welded rods deliver exceptional durability and efficient energy transfer for blasting holes, guardrail installations, anchoring systems, and mountain reinforcement projects.
Key Applications
- Drilling blasting holes in mining operations
- Guardrail hole installation for highway safety
- Mountain reinforcement and slope stabilization
- Anchoring systems for construction projects
- Railway infrastructure development
Technical Specifications
Mayhew Junior Pin to Box Friction Welded Rods
| O.D. | Wall Thickness | Length | Thread |
|---|---|---|---|
| 2-3/8" | 0.254" | 20" | 2-38" IF |
| 2-7/8" | 0.308" | 5" | 2-3/8" MAYHEW JR. |
| 2-7/8" | 0.362" | 5" | 2-3/8" MAYHEW JR. |
| 2-7/8" | 0.308" | 10" | 2-3/8" MAYHEW JR. |
| 2-7/8" | 0.362" | 10" | 2-3/8" MAYHEW JR. |
| 3-1/2" | 0.250" | 20" | 2-3/8" IF |
| 3-1/2" | 0.368" | 20" | 2-3/8" IF |
| 3-1/2" | 0.368" | 20" | 2-3/8" IF |
| 4-1/2" | 0.337" | 5" | 3-1/2" API |
| 4-1/2" | 0.337" | 10" | 3-1/2" API |
| 4-1/2" | 0.337" | 20" | 2-7/8" IF |
| 4-1/2" | 0.337" | 20" | 2-7/8" IF |
| 4-1/2" | 0.337" | 20" | 2-7/8" IF |
| 4-1/2" | 0.337" | 20" | 3-1/2" API |
| 4-1/2" | 0.337" | 20" | 3-1/2" API |
Performance Features
- Extended service life through robust construction
- Superior resistance to high bending stress
- Efficient percussion energy transfer from rock drill to drilling bit
- Friction-welded joints for maximum strength and reliability
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