Heavy Duty drag bits have 1″ thick blades and 1/4″ thick carbide inserts. This bit is designed for rapid penetration in soft to medium formations (clay, sand rock or shale) while the thicker blades and carbide extend the life of the bit. Listed below is our standard three and four blade but we also offer 5 or 6 blades in a variety of custom shapes and styles. Standard Pin or Box We can supply these bits with the following standard connections: Mayhew Reg., Mayhew Jr., 2 3/8″ IF, 2 7/8″ IF, 2 3/8″ Reg., 2 7/8″ Reg., 3 1/2″ Reg., 4 1/2″ Reg., 6 5/8″ Reg. Other pin and box connections are available on request.
| Description | Part # | Lbs. | Kg |
| W6R Heavy Duty 3 Wing | |||
| 5 1/2″ (139.7mm) | W6R512S3HD | – | – |
| 5 5/8″ (142.9mm) | W6R558S3HD | – | – |
| 5 7/8″ (149.2mm) | W6R578S3HD | – | – |
| 6″ (152.4mm) | W6R600S3HD | – | – |
| 6 1/8″ (155.6mm) | W6R618S3HD | – | – |
| 6 1/4″ (158.8mm) | W6R614S3HD | – | – |
| 6 1/2″ (165.1mm) | W6R612S3HD | – | – |
| 6 3/4″ (171.4mm) | W6R634S3HD | – | – |
| 7″ (177.8mm) | W6R700S3HD | – | – |
| 7 7/8″ (200.0mm) | W6R778S3HD | – | – |
| 8 1/2″ (208.3mm) | W6R812S3HD | – | – |
| 8 3/4″ (222.2mm) | W6R834S3HD | – | – |
| 9 7/8″ (250.8mm) | W6R978S3HD | – | – |
| 10 5/8″ (269.9mm) | W6R1058S3HD | – | – |
| 12 1/4″ (311.1mm) | W6R1214S3HD | – | – |
| 14 3/4″ (374.7mm) | W6R1434S3HD | – | – |
| 17 1/2″ (444.5mm) – Stabilizer Band (yes) | W6R1712S3HD | – | – |
| W6R Heavy Duty 4 Wing | |||
| 5 1/2″ (139.7mm) | W6R512S4HD | – | – |
| 5 5/8″ (142.9mm) | W6R558S4HD | – | – |
| 5 7/8″ (149.2mm) | W6R578S4HD | – | – |
| 6″ (152.4mm) | W6R600S4HD | – | – |
| 6 1/8″ (155.6mm) | W6R618S4HD | – | – |
| 6 1/4″ (158.8mm) | W6R614S4HD | – | – |
| 6 1/2″ (165.1mm) | W6R612S4HD | – | – |
| 6 3/4″ (171.4mm) | W6R634S4HD | – | – |
| 7″ (177.8mm) | W6R700S4HD | – | – |
| 7 7/8″ (200.0mm) | W6R778S4HD | – | – |
| 8 1/2″ (208.3mm) | W6R812S4HD | – | – |
| 8 3/4″ (222.2mm) | W6R834S4HD | – | – |
| 9 7/8″ (250.8mm) | W6R978S4HD | – | – |
| 10 5/8″ (269.9mm) | W6R1058S4HD | – | – |
| 12 1/4″ (311.1mm) | W6R1214S4HD | – | – |
| 14 3/4″ (374.7mm) | W6R1434S4HD | – | – |
| 17 1/2″ (444.5mm) – Stabilizer Band (yes) | W6R1712S4HD | – | – |
