Step Drag Bits – 3 Wing – Box
Created on：2020-12-14 18:46
Drag bits are welded solid at the nose for durability. Blades originate from 4140 heat-treated tool steel forgings. Forgings are milled to better seat the carbide inserts. Relief is hand ground behind carbide inserts for maximum performance.
Drag bits have a wide range of drilling applications including environmental, exploration, geothermal, water well, road construction, and natural gas and oilfield drilling. The best application for these types of drill bits is softer, unconsolidated formations like clays, shale, sands, and soft limestone. The most common styles are either step type or chevron type bits.
| Step Drag Bits – 3 Wing – Box specifications | |||
| Description | Part # | Lbs. | Kg |
| ACRO Box | |||
| 3 7/8″ (98mm) Step Drag Bit, ACRO | DB378SACROB | 5.5 | 2.5 |
| MJR Box | |||
| 3 7/8″ (98mm) Step Drag Bit, MJR Box | DB378SMJRB | 5.5 | 2.5 |
| 4 3/4″ (121mm) Step Drag Bit, MJR Box | DB434SMJRB | 10 | 4.6 |
| 5 1/4″ (133mm) Step Drag Bit, MJR Box | DB514SMJRB | 10 | 4.6 |
| 5 1/2″ (140mm) Step Drag Bit, MJR Box | DB512SMJRB | 12 | 5.6 |
| 5 5/8″ (130mm) Step Drag Bit, MJR Box | DB558SMJRB | 12 | 5.6 |
| 5 7/8″ (149mm) Step Drag Bit, MJR Box | DB578SMJRB | 12 | 5.6 |
| 6″ (152mm) Step Drag Bit, MJR Box | DB600SMJRB | 12 | 5.6 |
| 6 1/8″ (156mm) Step Drag Bit, MJR Box | DB618SMJRB | 12 | 5.6 |
| 6 1/4″ (159mm) Step Drag Bit, MJR Box | DB614SMJRB | 12 | 5.6 |
| 6 1/2″ (165mm) Step Drag Bit, MJR Box | DB612SMJRB | 12 | 5.6 |
| 6 3/4″ (172mm) Step Drag Bit, MJR Box | DB634SMJRB | 12 | 5.6 |
| 7″ (178mm) Step Drag Bit, MJR Box | DB700SMJRB | 14 | 6.5 |
| 7 1/2″ (191mm) Step Drag Bit, MJR Box | DB712SMJRB | 14 | 6.5 |
| 7 7/8″ (200mm) Step Drag Bit, MJR Box | DB778SMJRB | 14 | 6.5 |
| 8 1/2″ (216mm) Step Drag Bit, MJR Box | DB812SMJRB | 16 | 7.4 |
| 8 3/4″ (222mm) Step Drag Bit, MJR Box | DB834SMJRB | 16 | 7.4 |
| 9″ (229mm) Step Drag Bit, MJR Box | DB900SMJRB | 16 | 7.4 |
| 9 1/2″ (241mm) Step Drag Bit, MJR Box | DB912SMJRB | 18 | 8.3 |
| 9 7/8″ (251mm) Step Drag Bit, MJR Box | DB978SMJRB | 18 | 8.3 |
| 10″ (254mm) Step Drag Bit, MJR Box | DB1000SMJRB | 18 | 8.3 |
| FEDP Box | |||
| 4 3/4″ (121mm) Step Drag Bit, FEDP Box | DB434SFEDPB | 10 | 4.6 |
| 5 1/4″ (133mm) Step Drag Bit, FEDP Box | DB514SFEDPB | 10 | 4.6 |
| 5 1/2″ (140mm) Step Drag Bit, FEDP Box | DB512SFEDPB | 12 | 5.6 |
| 5 5/8″ (130mm) Step Drag Bit, FEDP Box | DB558SFEDPB | 12 | 5.6 |
| 5 7/8″ (149mm) Step Drag Bit, FEDP Box | DB578SFEDPB | 12 | 5.6 |
| 6″ (152mm) Step Drag Bit, FEDP Box | DB600SFEDPB | 12 | 5.6 |
| 6 1/8″ (156mm) Step Drag Bit, FEDP Box | DB618SFEDPB | 12 | 5.6 |
| 6 1/4″ (159mm) Step Drag Bit, FEDP Box | DB614SFEDPB | 12 | 5.6 |
| 6 1/2″ (165mm) Step Drag Bit, FEDP Box | DB612SFEDPB | 12 | 5.6 |
| 6 3/4″ (172mm) Step Drag Bit, FEDP Box | DB634SFEDPB | 12 | 5.6 |
| 7″ (178mm) Step Drag Bit, FEDP Box | DB700SFEDPB | 14 | 6.5 |
| 7 1/2″ (191mm) Step Drag Bit, FEDP Box | DB712SFEDPB | 14 | 6.5 |
| 7 7/8″ (200mm) Step Drag Bit, FEDP Box | DB778SFEDPB | 14 | 6.5 |
| 8 1/2″ (216mm) Step Drag Bit, FEDP Box | DB812SFEDPB | 16 | 7.4 |
| 8 3/4″ (222mm) Step Drag Bit, FEDP Box | DB834SFEDPB | 16 | 7.4 |
| 9″ (229mm) Step Drag Bit, FEDP Box | DB900SFEDPB | 16 | 7.4 |
| 9 1/2″ (241mm) Step Drag Bit, FEDP Box | DB912SFEDPB | 18 | 8.3 |
| 9 7/8 (251mm) Step Drag Bit, FEDP Box | DB978SFEDPB | 18 | 8.3 |
| 10″ (254mm) Step Drag Bit, FEDP Box | DB1000SFEDPB | 18 | 8.3 |
| MR Box | |||
| 4 3/4″ (121mm) Step Drag Bit, MR Box | DB434SMRB | 10 | 4.6 |
| 5 1/4″ (133mm) Step Drag Bit, MR Box | DB514SMRB | 10 | 4.6 |
| 5 1/2″ (140mm) Step Drag Bit, MR Box | DB512SMRB | 12 | 5.6 |
| 5 5/8″ (130mm) Step Drag Bit, MR Box | DB558SMRB | 12 | 5.6 |
| 5 7/8″ (149mm) Step Drag Bit, MR Box | DB578SMRB | 12 | 5.6 |
| 6″ (152mm) Step Drag Bit, MR Box | DB600SMRB | 12 | 5.6 |
| 6 1/8″ (156mm) Step Drag Bit, MR Box | DB618SMRB | 12 | 5.6 |
| 6 1/4″ (159mm) Step Drag Bit, MR Box | DB614SMRB | 12 | 5.6 |
| 6 1/2″ (165mm) Step Drag Bit, MR Box | DB612SMRB | 12 | 5.6 |
| 6 3/4″ (172mm) Step Drag Bit, MR Box | DB634SMRB | 12 | 5.6 |
| 7″ (178mm) Step Drag Bit, MR Box | DB700SMRB | 14 | 6.5 |
| 7 1/2″ (191mm) Step Drag Bit, MR Box | DB712SMRB | 14 | 6.5 |
| 7 7/8″ (200mm) Step Drag Bit, MR Box | DB778SMRB | 14 | 6.5 |
| 8 1/2″ (216mm) Step Drag Bit, MR Box | DB812SMRB | 16 | 7.4 |
| 8 3/4″ (222mm) Step Drag Bit, MR Box | DB834SMRB | 16 | 7.4 |
| 9″ (229mm) Step Drag Bit, MR Box | DB900SMRB | 16 | 7.4 |
| 9 1/2″ (241mm) Step Drag Bit, MR Box | DB912SMRB | 18 | 8.3 |
| 9 7/8″ (251mm) Step Drag Bit, MR Box | DB978SMRB | 18 | 8.3 |
| 10″ (254mm) Step Drag Bit, MR Box | DB1000SMRB | 18 | 8.3 |
| 2 3/8″ IF Box | |||
| 4 3/4″ (121mm) Step Drag Bit, 2 3/8″ IF Box | DB434S238IFB | 10 | 4.6 |
| 5 1/4″ (133mm) Step Drag Bit, 2 3/8″ IF Box | DB514S238IFB | 10 | 4.6 |
| 5 1/2″ (140mm) Step Drag Bit, 2 3/8″ IF Box | DB512S238IFB | 12 | 5.6 |
| 5 5/8″ (130mm) Step Drag Bit, 2 3/8″ IF Box | DB558S238IFB | 12 | 5.6 |
| 5 7/8″ (149mm) Step Drag Bit, 2 3/8″ IF Box | DB578S238IFB | 12 | 5.6 |
| 6″ (152mm) Step Drag Bit, 2 3/8″ IF Box | DB600S238IFB | 12 | 5.6 |
| 6 1/8″ (156mm) Step Drag Bit, 2 3/8″ IF Box | DB618S238IFB | 12 | 5.6 |
| 6 1/4″ (159mm) Step Drag Bit, 2 3/8″ IF Box | DB614S238IFB | 12 | 5.6 |
| 6 1/2″ (165mm) Step Drag Bit, 2 3/8″ IF Box | DB612S238IFB | 12 | 6.5 |
| 6 3/4″ (172mm) Step Drag Bit, 2 3/8″ IF Box | DB634S238IFB | 12 | 5.6 |
| 7″ (178mm) Step Drag Bit, 2 3/8″ IF Box | DB700S238IFB | 14 | 6.5 |
| 7 1/2″ (191mm) Step Drag Bit, 2 3/8″ IF Box | DB712S238IFB | 14 | 6.5 |
| 7 7/8″ (200mm) Step Drag Bit, 2 3/8″ IF Box | DB778S238IFB | 14 | 6.5 |
| 8 1/2″ (216mm) Step Drag Bit, 2 3/8″ IF Box | DB812S238IFB | 16 | 7.4 |
| 8 3/4″ (222mm) Step Drag Bit, 2 3/8″ IF Box | DB834S238IFB | 16 | 7.4 |
| 9″ (229mm) Step Drag Bit, 2 3/8″ IF Box | DB900S238IFB | 16 | 7.4 |
| 9 1/2″ (241mm) Step Drag Bit, 2 3/8″ IF Box | DB912S238IFB | 18 | 8.3 |
| 9 7/8″ (251mm) Step Drag Bit, 2 3/8″ IF Box | DB978S238IFB | 18 | 8.3 |
