| Brand Name: | HLDRILL |
| MOQ: | 10PCS |
| Price: | Please contact us |
| Payment Terms: | T/T |
| Supply Ability: | 3000 PCS Per month |
| Diameter | 55mm |
| Body Length | 66mm |
| Tapered Degree | 11° |
| Carbide Size | 2×9mm, 5×9mm |
| Carbide Brand and Grade | ZCC/YK05 |
| Steel Grade | 45CrNiMoVA |
| Weight | 0.6 kg |
This Henglong 50mm × 66mm tapered ball-tooth drill bit is engineered for demanding, high-impact applications in mine tunnel construction and underground reinforcement projects. Combining exceptional durability with precision drilling performance, it delivers reliable operation in medium-hard to hard rock formations.