Code | Drill_Bit_Grade_TBG |
Name | Teeth-Bearing-Gauge Drill Bit Grading |
Parents | Property > Grade |
Description | The TBG, Teeth-Bearing-Gauge, grading assigned to a drill bit based on particular criteria. The TBG has 5 fields: Bearing, Broken Teeth, Gauge, Gauge Out of Hole, Tooth Wear. |