171 mm Concave PDC Drill Bit
171 mm diameter · 3 blades · 7.7 kg
A 171 mm PDC bit for water-well drilling and exploration. Its three-blade concave face carries fixed cutters, with an internal threaded connection in the rear shank. Unit weight is 7.7 kg.
Technical specifications
| Diameter | 171 mm |
|---|---|
| Cutting structure | PDC fixed cutters |
| Face profile | Concave |
| Blades | 3 |
| Connection | Internal thread |
| Weight | 7.7 kg |
| Manufacturing process | Forging |
| Surface finish | Spray-painted |
Three-blade concave cutting face
Three radial blades carry round PDC cutters along their edges. The center sits lower between the blades, with open channels separating the cutting wings. Small face openings and larger side openings sit between the cutter rows.
Internal threaded connection
An internal threaded bore forms the rear connection. The cylindrical shank joins directly to the cutting head, and a broad circular shoulder surrounds the thread entrance.
171 mm Concave PDC Drill Bit
The 171 mm Concave PDC Drill Bit combines a three-blade cutting head with a cylindrical rear shank. It is designed for water-well drilling and exploration, with a 171 mm cutting diameter and a unit weight of 7.7 kg.
Three-blade concave cutting face
Three radial blades carry rows of round PDC cutting elements. The cutter rows extend along the blade edges toward the outside of the head. The center is recessed between the blades, forming the concave face.
Fixed cutters for rotary drilling
PDC means polycrystalline diamond compact. In fixed-cutter drilling, the cutting elements shear rock as the bit rotates. On this bit, the cutters sit along the blade edges, with open channels between the three blades.
Body and rear connection
The body is forged and finished with a sprayed coating. An internal thread sits inside the cylindrical shank. A broad circular end face surrounds the connection bore, while the side profile links the shank directly to the cutting head.
Cutting-face openings
The face includes small openings near its center and larger side openings between the blades. The wide gaps between the three blades separate the cutting rows and continue toward the sides of the head.
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