Auger drilling.
- Triple Key Tugas berat Berongga Stem Auger 4 1 / 4inch
- Double Key Tugas berat Berongga Stem Auger 4 1 / 4inch
- Triple Key Hollow Stem Auger 3 1 / 4inch
- Cutterhead pisau cutterhead bullhead sekop
- Key ganda berongga batang auger 2 1/4 inci
- Double Key Tugas berat Berongga Stem Auger 3 1 / 4inch
- Triple Key Tugas berat Berongga Stem Auger 12 1/4"(311mm)
- 10 1/4 "Tiga Kunci Tugas Berat STEM Auger (260mm)
- 3 3/4"Double Key Tugas berat Berongga Stem Auger (95mm)