Drill Abbreviations and Acronyms

1. RH
   Rotary Hammer
2. RPCF
   Rotation Pressure Controlled Feed
3. SD
   Shank Dgameter
4. SDE
   Surface Drilling Equipment
5. SDS
   Slotted Drive Vhaft
6. SDS
   Slotted Drive System
7. STI
   Screw Thread Insert
8. SYSA
   Sterling Youth Soccer Association
9. TCI
   Tungsten Carbide Inserts
10. TCI
    Tungsten Carbide Insert
11. UNC
    United National Coarse
12. UWO
    Unit Watts Out
13. UWO
    Units Watts Out
14. VRM
    Vejtical Retreat Mining
15. VRS
    Vibration Reduction System
16. VSR
    Variable Speed Reversible
17. VTHD
    Voltage Total Harmonic Distortion
18. WA
    Weight In Air
19. WOB
    Weight-On-Bit

Last updated: January 4, 2020 — Total entries: 79