Four-Wing Arc Angle Coreless for Mining Drill Bit
Four-wing coreless bit · Coal mining
Four-wing coreless drill bit with an arc-angle cutting profile for coal-mining applications. It is manufactured by casting.
Model designations include 75#, 91#, 113#, 133#, 153#, 171#, 200# and 220#.
Technical specifications
| Manufacturing process | Casting |
|---|---|
| Application | Coal mining |
| Model designations | 75# / 91# / 113# / 133# / 153# / 171# / 200# / 220# |