1.material:high manganese steel
2.color:golden
3.rich experience in drill bit
4. High quality, low price
Port: Tianjin
Minimum Order Quantity: 1 Piece/Pieces tricone bit
Supply Ability: 5000 Piece/Pieces per Month tricone
Payment Terms: L/C,T/T,Western Union
Contact Supplier
Packaging Detail: carton ,wooden box,steel box
Delivery Detail: within 10 days after your payments
Detailed Description Of This Product
| Size | 8 1/2" 215.9mm |
| Pin shank size | 4 1/2reg |
| Bit type | SKH137 |
| IADC Code | 137 |
| Formation of application | Soft to medium soft or soft with harder stringer, such as hard gypsolyte, soft limestone and sandstone, etc |
| Main characteristics of bit(cutting structure) | Tooth face and back cone hard-faced strengthening/Tooth face, back cone hardfaced strengthening,back cone is inserted (tooth) |
| Normal WOB KN/mm (bit dia.) | 0.35~1.05 |
| Rotary speed (rpm) | 120~60 |
| Payment terms | L/C, T/T, Western Union |
| MOQ | 1 Piece |
| Delivery time | within 7 days |
| Packing | carton, wooden box , steel box or as your requirements |
You may interested in
Size | Bit type | |
| in. | mm | |
| 6 | 152.4 | 136, 127 |
| 6 1/2 | 165.1 | 126, 127 |
| 7 1/2 | 190.5 | 126, 136, 216, 227 |
| 8 1/2 | 215.9 | 114, 124, 126, 127 |
| 9 1/2 | 241.3 | 126, 127 |
| 9 5/8 | 244.5 | 127 |
| 9 7/8 | 250.8 | 127 |
| 12 1/4 | 311.1 | 114, 126, 127 |
| 13 5/8 | 346 | 114, 126, 127 |
| 14 3/4 | 374.6 | 124 |
| 15 | 381 | 124 |
| 15 1/2 | 393.7 | 124 |
| 17 1/2 | 444.6 | 114, 117, 124, 126, 216 |
| 22 | 558.8 | 124 |
| 24 | 609.6 | 124 |
| 26 | 660.4 | 114 |
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